Home / 138,722.02-208,033.79-49,951.69

Finding the Fourth Proportional to 138,722.02, 208,033.79 and 49,951.69

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Solution

The fourth proportional to 138,722.02, 208,033.79 and 49,951.69 is: 74,909.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,722.02 : 208,033.79 = 49,951.69 : x
  2. Step 2: Convert to fraction form
    138,722.02/208,033.79 = 49,951.69/x
  3. Step 3: Cross multiply
    138,722.02x = 208,033.79 × 49,951.69
  4. Step 4: Simplify right side
    138,722.02x = 10,391,638,617.76
  5. Step 5: Solve for x
    x = 10,391,638,617.76/138,722.02
  6. Step 6: Final answer
    x = 74,909.80

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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.