Home / 127,985.56-176,623.92-71,395.72

Finding the Fourth Proportional to 127,985.56, 176,623.92 and 71,395.72

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Solution

The fourth proportional to 127,985.56, 176,623.92 and 71,395.72 is: 98,528.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,985.56 : 176,623.92 = 71,395.72 : x
  2. Step 2: Convert to fraction form
    127,985.56/176,623.92 = 71,395.72/x
  3. Step 3: Cross multiply
    127,985.56x = 176,623.92 × 71,395.72
  4. Step 4: Simplify right side
    127,985.56x = 12,610,191,937.62
  5. Step 5: Solve for x
    x = 12,610,191,937.62/127,985.56
  6. Step 6: Final answer
    x = 98,528.24

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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.