Home / 151,909.92-209,548.08-91,438.56

Finding the Fourth Proportional to 151,909.92, 209,548.08 and 91,438.56

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Solution

The fourth proportional to 151,909.92, 209,548.08 and 91,438.56 is: 126,132.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,909.92 : 209,548.08 = 91,438.56 : x
  2. Step 2: Convert to fraction form
    151,909.92/209,548.08 = 91,438.56/x
  3. Step 3: Cross multiply
    151,909.92x = 209,548.08 × 91,438.56
  4. Step 4: Simplify right side
    151,909.92x = 19,160,774,685.96
  5. Step 5: Solve for x
    x = 19,160,774,685.96/151,909.92
  6. Step 6: Final answer
    x = 126,132.48

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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.