Home / 99,962.94-137,931.51-61,743.90

Finding the Fourth Proportional to 99,962.94, 137,931.51 and 61,743.90

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Solution

The fourth proportional to 99,962.94, 137,931.51 and 61,743.90 is: 85,195.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,962.94 : 137,931.51 = 61,743.90 : x
  2. Step 2: Convert to fraction form
    99,962.94/137,931.51 = 61,743.90/x
  3. Step 3: Cross multiply
    99,962.94x = 137,931.51 × 61,743.90
  4. Step 4: Simplify right side
    99,962.94x = 8,516,429,360.29
  5. Step 5: Solve for x
    x = 8,516,429,360.29/99,962.94
  6. Step 6: Final answer
    x = 85,195.87

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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.