Home / 151,172.87-208,627.17-86,652.84

Finding the Fourth Proportional to 151,172.87, 208,627.17 and 86,652.84

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Solution

The fourth proportional to 151,172.87, 208,627.17 and 86,652.84 is: 119,585.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,172.87 : 208,627.17 = 86,652.84 : x
  2. Step 2: Convert to fraction form
    151,172.87/208,627.17 = 86,652.84/x
  3. Step 3: Cross multiply
    151,172.87x = 208,627.17 × 86,652.84
  4. Step 4: Simplify right side
    151,172.87x = 18,078,136,781.66
  5. Step 5: Solve for x
    x = 18,078,136,781.66/151,172.87
  6. Step 6: Final answer
    x = 119,585.86

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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.