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Finding the Fourth Proportional to 127,340.70, 175,735.08 and 69,984.90

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Solution

The fourth proportional to 127,340.70, 175,735.08 and 69,984.90 is: 96,581.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,340.70 : 175,735.08 = 69,984.90 : x
  2. Step 2: Convert to fraction form
    127,340.70/175,735.08 = 69,984.90/x
  3. Step 3: Cross multiply
    127,340.70x = 175,735.08 × 69,984.90
  4. Step 4: Simplify right side
    127,340.70x = 12,298,802,000.29
  5. Step 5: Solve for x
    x = 12,298,802,000.29/127,340.70
  6. Step 6: Final answer
    x = 96,581.86

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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.