Home / 125,988.75-188,983.13-52,116.75

Finding the Fourth Proportional to 125,988.75, 188,983.13 and 52,116.75

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Solution

The fourth proportional to 125,988.75, 188,983.13 and 52,116.75 is: 78,175.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,988.75 : 188,983.13 = 52,116.75 : x
  2. Step 2: Convert to fraction form
    125,988.75/188,983.13 = 52,116.75/x
  3. Step 3: Cross multiply
    125,988.75x = 188,983.13 × 52,116.75
  4. Step 4: Simplify right side
    125,988.75x = 9,849,186,279.84
  5. Step 5: Solve for x
    x = 9,849,186,279.84/125,988.75
  6. Step 6: Final answer
    x = 78,175.13

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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.