Home / 142,523.92-213,822.76-53,778.18

Finding the Fourth Proportional to 142,523.92, 213,822.76 and 53,778.18

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Solution

The fourth proportional to 142,523.92, 213,822.76 and 53,778.18 is: 80,681.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,523.92 : 213,822.76 = 53,778.18 : x
  2. Step 2: Convert to fraction form
    142,523.92/213,822.76 = 53,778.18/x
  3. Step 3: Cross multiply
    142,523.92x = 213,822.76 × 53,778.18
  4. Step 4: Simplify right side
    142,523.92x = 11,498,998,875.38
  5. Step 5: Solve for x
    x = 11,498,998,875.38/142,523.92
  6. Step 6: Final answer
    x = 80,681.19

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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.