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Finding the Fourth Proportional to 151,502.59, 209,091.54 and 91,104.13

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Solution

The fourth proportional to 151,502.59, 209,091.54 and 91,104.13 is: 125,734.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,502.59 : 209,091.54 = 91,104.13 : x
  2. Step 2: Convert to fraction form
    151,502.59/209,091.54 = 91,104.13/x
  3. Step 3: Cross multiply
    151,502.59x = 209,091.54 × 91,104.13
  4. Step 4: Simplify right side
    151,502.59x = 19,049,102,842.06
  5. Step 5: Solve for x
    x = 19,049,102,842.06/151,502.59
  6. Step 6: Final answer
    x = 125,734.50

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1.5x scale

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.