Home / 151,222.60-208,707.06-86,717.08

Finding the Fourth Proportional to 151,222.60, 208,707.06 and 86,717.08

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Solution

The fourth proportional to 151,222.60, 208,707.06 and 86,717.08 is: 119,680.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,222.60 : 208,707.06 = 86,717.08 : x
  2. Step 2: Convert to fraction form
    151,222.60/208,707.06 = 86,717.08/x
  3. Step 3: Cross multiply
    151,222.60x = 208,707.06 × 86,717.08
  4. Step 4: Simplify right side
    151,222.60x = 18,098,466,818.58
  5. Step 5: Solve for x
    x = 18,098,466,818.58/151,222.60
  6. Step 6: Final answer
    x = 119,680.97

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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.