Home / 151,637.76-209,192.46-87,938.66

Finding the Fourth Proportional to 151,637.76, 209,192.46 and 87,938.66

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Solution

The fourth proportional to 151,637.76, 209,192.46 and 87,938.66 is: 121,316.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,637.76 : 209,192.46 = 87,938.66 : x
  2. Step 2: Convert to fraction form
    151,637.76/209,192.46 = 87,938.66/x
  3. Step 3: Cross multiply
    151,637.76x = 209,192.46 × 87,938.66
  4. Step 4: Simplify right side
    151,637.76x = 18,396,104,614.50
  5. Step 5: Solve for x
    x = 18,396,104,614.50/151,637.76
  6. Step 6: Final answer
    x = 121,316.12

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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.