Home / 115,250,041.68-172,991,927.15-102,203,189.76

Finding the Fourth Proportional to 115,250,041.68, 172,991,927.15 and 102,203,189.76

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Solution

The fourth proportional to 115,250,041.68, 172,991,927.15 and 102,203,189.76 is: 153,408,419.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,250,041.68 : 172,991,927.15 = 102,203,189.76 : x
  2. Step 2: Convert to fraction form
    115,250,041.68/172,991,927.15 = 102,203,189.76/x
  3. Step 3: Cross multiply
    115,250,041.68x = 172,991,927.15 × 102,203,189.76
  4. Step 4: Simplify right side
    115,250,041.68x = 17,680,326,757,459,548
  5. Step 5: Solve for x
    x = 17,680,326,757,459,548/115,250,041.68
  6. Step 6: Final answer
    x = 153,408,419.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.