Home / 128,946.28-193,393.50-35,439.88

Finding the Fourth Proportional to 128,946.28, 193,393.50 and 35,439.88

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Solution

The fourth proportional to 128,946.28, 193,393.50 and 35,439.88 is: 53,152.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,946.28 : 193,393.50 = 35,439.88 : x
  2. Step 2: Convert to fraction form
    128,946.28/193,393.50 = 35,439.88/x
  3. Step 3: Cross multiply
    128,946.28x = 193,393.50 × 35,439.88
  4. Step 4: Simplify right side
    128,946.28x = 6,853,842,432.78
  5. Step 5: Solve for x
    x = 6,853,842,432.78/128,946.28
  6. Step 6: Final answer
    x = 53,152.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.