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Finding the Fourth Proportional to 127,432.25, 175,856.71 and 70,843.63

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Solution

The fourth proportional to 127,432.25, 175,856.71 and 70,843.63 is: 97,764.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,432.25 : 175,856.71 = 70,843.63 : x
  2. Step 2: Convert to fraction form
    127,432.25/175,856.71 = 70,843.63/x
  3. Step 3: Cross multiply
    127,432.25x = 175,856.71 × 70,843.63
  4. Step 4: Simplify right side
    127,432.25x = 12,458,326,816.97
  5. Step 5: Solve for x
    x = 12,458,326,816.97/127,432.25
  6. Step 6: Final answer
    x = 97,764.32

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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.