Home / 129,549.25-178,822.70-75,851.52

Finding the Fourth Proportional to 129,549.25, 178,822.70 and 75,851.52

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Solution

The fourth proportional to 129,549.25, 178,822.70 and 75,851.52 is: 104,701.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,549.25 : 178,822.70 = 75,851.52 : x
  2. Step 2: Convert to fraction form
    129,549.25/178,822.70 = 75,851.52/x
  3. Step 3: Cross multiply
    129,549.25x = 178,822.70 × 75,851.52
  4. Step 4: Simplify right side
    129,549.25x = 13,563,973,605.50
  5. Step 5: Solve for x
    x = 13,563,973,605.50/129,549.25
  6. Step 6: Final answer
    x = 104,701.29

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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.