Home / 127,658.16-176,168.52-71,071.56

Finding the Fourth Proportional to 127,658.16, 176,168.52 and 71,071.56

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Solution

The fourth proportional to 127,658.16, 176,168.52 and 71,071.56 is: 98,078.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,658.16 : 176,168.52 = 71,071.56 : x
  2. Step 2: Convert to fraction form
    127,658.16/176,168.52 = 71,071.56/x
  3. Step 3: Cross multiply
    127,658.16x = 176,168.52 × 71,071.56
  4. Step 4: Simplify right side
    127,658.16x = 12,520,571,539.29
  5. Step 5: Solve for x
    x = 12,520,571,539.29/127,658.16
  6. Step 6: Final answer
    x = 98,078.90

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1.5x scale

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.