Home / 127,710.88-176,240.82-71,135.62

Finding the Fourth Proportional to 127,710.88, 176,240.82 and 71,135.62

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Solution

The fourth proportional to 127,710.88, 176,240.82 and 71,135.62 is: 98,167.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,710.88 : 176,240.82 = 71,135.62 : x
  2. Step 2: Convert to fraction form
    127,710.88/176,240.82 = 71,135.62/x
  3. Step 3: Cross multiply
    127,710.88x = 176,240.82 × 71,135.62
  4. Step 4: Simplify right side
    127,710.88x = 12,537,000,000.01
  5. Step 5: Solve for x
    x = 12,537,000,000.01/127,710.88
  6. Step 6: Final answer
    x = 98,167.05

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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.