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Finding the Fourth Proportional to 127,879.82, 176,470.10 and 70,521.56

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Solution

The fourth proportional to 127,879.82, 176,470.10 and 70,521.56 is: 97,317.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,879.82 : 176,470.10 = 70,521.56 : x
  2. Step 2: Convert to fraction form
    127,879.82/176,470.10 = 70,521.56/x
  3. Step 3: Cross multiply
    127,879.82x = 176,470.10 × 70,521.56
  4. Step 4: Simplify right side
    127,879.82x = 12,444,946,745.36
  5. Step 5: Solve for x
    x = 12,444,946,745.36/127,879.82
  6. Step 6: Final answer
    x = 97,317.52

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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.