Home / 145,944.07-218,916.11-67,124.59

Finding the Fourth Proportional to 145,944.07, 218,916.11 and 67,124.59

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Solution

The fourth proportional to 145,944.07, 218,916.11 and 67,124.59 is: 100,686.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,944.07 : 218,916.11 = 67,124.59 : x
  2. Step 2: Convert to fraction form
    145,944.07/218,916.11 = 67,124.59/x
  3. Step 3: Cross multiply
    145,944.07x = 218,916.11 × 67,124.59
  4. Step 4: Simplify right side
    145,944.07x = 14,694,654,675.44
  5. Step 5: Solve for x
    x = 14,694,654,675.44/145,944.07
  6. Step 6: Final answer
    x = 100,686.89

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Similar ratio
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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.