Home / 151,869.16-209,581.70-88,207

Finding the Fourth Proportional to 151,869.16, 209,581.70 and 88,207

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Solution

The fourth proportional to 151,869.16, 209,581.70 and 88,207 is: 121,726.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,869.16 : 209,581.70 = 88,207 : x
  2. Step 2: Convert to fraction form
    151,869.16/209,581.70 = 88,207/x
  3. Step 3: Cross multiply
    151,869.16x = 209,581.70 × 88,207
  4. Step 4: Simplify right side
    151,869.16x = 18,486,573,011.90
  5. Step 5: Solve for x
    x = 18,486,573,011.90/151,869.16
  6. Step 6: Final answer
    x = 121,726.97

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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.