Home / 127,839.48-176,279.94-87,030

Finding the Fourth Proportional to 127,839.48, 176,279.94 and 87,030

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Solution

The fourth proportional to 127,839.48, 176,279.94 and 87,030 is: 120,007.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,839.48 : 176,279.94 = 87,030 : x
  2. Step 2: Convert to fraction form
    127,839.48/176,279.94 = 87,030/x
  3. Step 3: Cross multiply
    127,839.48x = 176,279.94 × 87,030
  4. Step 4: Simplify right side
    127,839.48x = 15,341,643,178.20
  5. Step 5: Solve for x
    x = 15,341,643,178.20/127,839.48
  6. Step 6: Final answer
    x = 120,007.08

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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.