Home / 153,932.47-230,710.07-87,428.57

Finding the Fourth Proportional to 153,932.47, 230,710.07 and 87,428.57

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Solution

The fourth proportional to 153,932.47, 230,710.07 and 87,428.57 is: 131,035.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,932.47 : 230,710.07 = 87,428.57 : x
  2. Step 2: Convert to fraction form
    153,932.47/230,710.07 = 87,428.57/x
  3. Step 3: Cross multiply
    153,932.47x = 230,710.07 × 87,428.57
  4. Step 4: Simplify right side
    153,932.47x = 20,170,650,569.72
  5. Step 5: Solve for x
    x = 20,170,650,569.72/153,932.47
  6. Step 6: Final answer
    x = 131,035.71

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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.