Home / 127,869.50-176,459.92-71,284.52

Finding the Fourth Proportional to 127,869.50, 176,459.92 and 71,284.52

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Solution

The fourth proportional to 127,869.50, 176,459.92 and 71,284.52 is: 98,372.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,869.50 : 176,459.92 = 71,284.52 : x
  2. Step 2: Convert to fraction form
    127,869.50/176,459.92 = 71,284.52/x
  3. Step 3: Cross multiply
    127,869.50x = 176,459.92 × 71,284.52
  4. Step 4: Simplify right side
    127,869.50x = 12,578,860,696.44
  5. Step 5: Solve for x
    x = 12,578,860,696.44/127,869.50
  6. Step 6: Final answer
    x = 98,372.64

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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.