Home / 115,343.10-159,173.20-65,041.74

Finding the Fourth Proportional to 115,343.10, 159,173.20 and 65,041.74

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Solution

The fourth proportional to 115,343.10, 159,173.20 and 65,041.74 is: 89,757.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,343.10 : 159,173.20 = 65,041.74 : x
  2. Step 2: Convert to fraction form
    115,343.10/159,173.20 = 65,041.74/x
  3. Step 3: Cross multiply
    115,343.10x = 159,173.20 × 65,041.74
  4. Step 4: Simplify right side
    115,343.10x = 10,352,901,889.37
  5. Step 5: Solve for x
    x = 10,352,901,889.37/115,343.10
  6. Step 6: Final answer
    x = 89,757.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.