Home / 138,359.15-206,392.26-134,280.39

Finding the Fourth Proportional to 138,359.15, 206,392.26 and 134,280.39

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Solution

The fourth proportional to 138,359.15, 206,392.26 and 134,280.39 is: 200,307.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,359.15 : 206,392.26 = 134,280.39 : x
  2. Step 2: Convert to fraction form
    138,359.15/206,392.26 = 134,280.39/x
  3. Step 3: Cross multiply
    138,359.15x = 206,392.26 × 134,280.39
  4. Step 4: Simplify right side
    138,359.15x = 27,714,433,165.78
  5. Step 5: Solve for x
    x = 27,714,433,165.78/138,359.15
  6. Step 6: Final answer
    x = 200,307.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.