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Finding the Fourth Proportional to 138,240.54, 207,393.78 and 44,746.32

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Solution

The fourth proportional to 138,240.54, 207,393.78 and 44,746.32 is: 67,130.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,240.54 : 207,393.78 = 44,746.32 : x
  2. Step 2: Convert to fraction form
    138,240.54/207,393.78 = 44,746.32/x
  3. Step 3: Cross multiply
    138,240.54x = 207,393.78 × 44,746.32
  4. Step 4: Simplify right side
    138,240.54x = 9,280,108,445.89
  5. Step 5: Solve for x
    x = 9,280,108,445.89/138,240.54
  6. Step 6: Final answer
    x = 67,130.15

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1.5x scale

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.