Home / 113,151.27-156,020.76-72,261.66

Finding the Fourth Proportional to 113,151.27, 156,020.76 and 72,261.66

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Solution

The fourth proportional to 113,151.27, 156,020.76 and 72,261.66 is: 99,639.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,151.27 : 156,020.76 = 72,261.66 : x
  2. Step 2: Convert to fraction form
    113,151.27/156,020.76 = 72,261.66/x
  3. Step 3: Cross multiply
    113,151.27x = 156,020.76 × 72,261.66
  4. Step 4: Simplify right side
    113,151.27x = 11,274,319,112.06
  5. Step 5: Solve for x
    x = 11,274,319,112.06/113,151.27
  6. Step 6: Final answer
    x = 99,639.35

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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.