Home / 151,890.15-209,491.92-91,397.73

Finding the Fourth Proportional to 151,890.15, 209,491.92 and 91,397.73

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Solution

The fourth proportional to 151,890.15, 209,491.92 and 91,397.73 is: 126,058.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,890.15 : 209,491.92 = 91,397.73 : x
  2. Step 2: Convert to fraction form
    151,890.15/209,491.92 = 91,397.73/x
  3. Step 3: Cross multiply
    151,890.15x = 209,491.92 × 91,397.73
  4. Step 4: Simplify right side
    151,890.15x = 19,147,085,941.34
  5. Step 5: Solve for x
    x = 19,147,085,941.34/151,890.15
  6. Step 6: Final answer
    x = 126,058.77

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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.