Home / 137,122.88-205,671.36-43,612.16

Finding the Fourth Proportional to 137,122.88, 205,671.36 and 43,612.16

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Solution

The fourth proportional to 137,122.88, 205,671.36 and 43,612.16 is: 65,414.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,122.88 : 205,671.36 = 43,612.16 : x
  2. Step 2: Convert to fraction form
    137,122.88/205,671.36 = 43,612.16/x
  3. Step 3: Cross multiply
    137,122.88x = 205,671.36 × 43,612.16
  4. Step 4: Simplify right side
    137,122.88x = 8,969,772,259.74
  5. Step 5: Solve for x
    x = 8,969,772,259.74/137,122.88
  6. Step 6: Final answer
    x = 65,414.12

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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.