Home / 153,403.29-230,104.94-69,140.61

Finding the Fourth Proportional to 153,403.29, 230,104.94 and 69,140.61

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Solution

The fourth proportional to 153,403.29, 230,104.94 and 69,140.61 is: 103,710.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,403.29 : 230,104.94 = 69,140.61 : x
  2. Step 2: Convert to fraction form
    153,403.29/230,104.94 = 69,140.61/x
  3. Step 3: Cross multiply
    153,403.29x = 230,104.94 × 69,140.61
  4. Step 4: Simplify right side
    153,403.29x = 15,909,595,569.91
  5. Step 5: Solve for x
    x = 15,909,595,569.91/153,403.29
  6. Step 6: Final answer
    x = 103,710.92

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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.