Home / 115,019.11-172,422.40-61,748.58

Finding the Fourth Proportional to 115,019.11, 172,422.40 and 61,748.58

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Solution

The fourth proportional to 115,019.11, 172,422.40 and 61,748.58 is: 92,565.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,019.11 : 172,422.40 = 61,748.58 : x
  2. Step 2: Convert to fraction form
    115,019.11/172,422.40 = 61,748.58/x
  3. Step 3: Cross multiply
    115,019.11x = 172,422.40 × 61,748.58
  4. Step 4: Simplify right side
    115,019.11x = 10,646,837,824.64
  5. Step 5: Solve for x
    x = 10,646,837,824.64/115,019.11
  6. Step 6: Final answer
    x = 92,565.81

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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.