Home / 145,875.20-218,809.60-40,691.20

Finding the Fourth Proportional to 145,875.20, 218,809.60 and 40,691.20

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Solution

The fourth proportional to 145,875.20, 218,809.60 and 40,691.20 is: 61,035.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,875.20 : 218,809.60 = 40,691.20 : x
  2. Step 2: Convert to fraction form
    145,875.20/218,809.60 = 40,691.20/x
  3. Step 3: Cross multiply
    145,875.20x = 218,809.60 × 40,691.20
  4. Step 4: Simplify right side
    145,875.20x = 8,903,625,195.52
  5. Step 5: Solve for x
    x = 8,903,625,195.52/145,875.20
  6. Step 6: Final answer
    x = 61,035.91

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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.