Home / 113,688.91-156,798.24-100,047.52

Finding the Fourth Proportional to 113,688.91, 156,798.24 and 100,047.52

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Solution

The fourth proportional to 113,688.91, 156,798.24 and 100,047.52 is: 137,984.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,688.91 : 156,798.24 = 100,047.52 : x
  2. Step 2: Convert to fraction form
    113,688.91/156,798.24 = 100,047.52/x
  3. Step 3: Cross multiply
    113,688.91x = 156,798.24 × 100,047.52
  4. Step 4: Simplify right side
    113,688.91x = 15,687,275,052.36
  5. Step 5: Solve for x
    x = 15,687,275,052.36/113,688.91
  6. Step 6: Final answer
    x = 137,984.22

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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.