Home / 113,729.20-156,953.65-65,998.60

Finding the Fourth Proportional to 113,729.20, 156,953.65 and 65,998.60

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Solution

The fourth proportional to 113,729.20, 156,953.65 and 65,998.60 is: 91,082.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,729.20 : 156,953.65 = 65,998.60 : x
  2. Step 2: Convert to fraction form
    113,729.20/156,953.65 = 65,998.60/x
  3. Step 3: Cross multiply
    113,729.20x = 156,953.65 × 65,998.60
  4. Step 4: Simplify right side
    113,729.20x = 10,358,721,164.89
  5. Step 5: Solve for x
    x = 10,358,721,164.89/113,729.20
  6. Step 6: Final answer
    x = 91,082.34

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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.