Home / 72,131.13-108,197.51-22,210.83

Finding the Fourth Proportional to 72,131.13, 108,197.51 and 22,210.83

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Solution

The fourth proportional to 72,131.13, 108,197.51 and 22,210.83 is: 33,316.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,131.13 : 108,197.51 = 22,210.83 : x
  2. Step 2: Convert to fraction form
    72,131.13/108,197.51 = 22,210.83/x
  3. Step 3: Cross multiply
    72,131.13x = 108,197.51 × 22,210.83
  4. Step 4: Simplify right side
    72,131.13x = 2,403,156,389.98
  5. Step 5: Solve for x
    x = 2,403,156,389.98/72,131.13
  6. Step 6: Final answer
    x = 33,316.49

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.