Home / 113,121.74-156,101.10-62,124.55

Finding the Fourth Proportional to 113,121.74, 156,101.10 and 62,124.55

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Solution

The fourth proportional to 113,121.74, 156,101.10 and 62,124.55 is: 85,728.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,121.74 : 156,101.10 = 62,124.55 : x
  2. Step 2: Convert to fraction form
    113,121.74/156,101.10 = 62,124.55/x
  3. Step 3: Cross multiply
    113,121.74x = 156,101.10 × 62,124.55
  4. Step 4: Simplify right side
    113,121.74x = 9,697,710,592.01
  5. Step 5: Solve for x
    x = 9,697,710,592.01/113,121.74
  6. Step 6: Final answer
    x = 85,728.09

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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.