Home / 129,326.04-178,443.18-75,600.66

Finding the Fourth Proportional to 129,326.04, 178,443.18 and 75,600.66

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Solution

The fourth proportional to 129,326.04, 178,443.18 and 75,600.66 is: 104,313.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,326.04 : 178,443.18 = 75,600.66 : x
  2. Step 2: Convert to fraction form
    129,326.04/178,443.18 = 75,600.66/x
  3. Step 3: Cross multiply
    129,326.04x = 178,443.18 × 75,600.66
  4. Step 4: Simplify right side
    129,326.04x = 13,490,422,180.50
  5. Step 5: Solve for x
    x = 13,490,422,180.50/129,326.04
  6. Step 6: Final answer
    x = 104,313.27

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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.