Home / 457,139.95-685,755.01-157,581.09

Finding the Fourth Proportional to 457,139.95, 685,755.01 and 157,581.09

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Solution

The fourth proportional to 457,139.95, 685,755.01 and 157,581.09 is: 236,387.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,139.95 : 685,755.01 = 157,581.09 : x
  2. Step 2: Convert to fraction form
    457,139.95/685,755.01 = 157,581.09/x
  3. Step 3: Cross multiply
    457,139.95x = 685,755.01 × 157,581.09
  4. Step 4: Simplify right side
    457,139.95x = 108,062,021,554.81
  5. Step 5: Solve for x
    x = 108,062,021,554.81/457,139.95
  6. Step 6: Final answer
    x = 236,387.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.