Home / 127,727.55-176,269.47-71,138.91

Finding the Fourth Proportional to 127,727.55, 176,269.47 and 71,138.91

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Solution

The fourth proportional to 127,727.55, 176,269.47 and 71,138.91 is: 98,174.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,727.55 : 176,269.47 = 71,138.91 : x
  2. Step 2: Convert to fraction form
    127,727.55/176,269.47 = 71,138.91/x
  3. Step 3: Cross multiply
    127,727.55x = 176,269.47 × 71,138.91
  4. Step 4: Simplify right side
    127,727.55x = 12,539,617,962.08
  5. Step 5: Solve for x
    x = 12,539,617,962.08/127,727.55
  6. Step 6: Final answer
    x = 98,174.73

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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.