Home / 137,264.20-205,931.77-80,386.11

Finding the Fourth Proportional to 137,264.20, 205,931.77 and 80,386.11

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Solution

The fourth proportional to 137,264.20, 205,931.77 and 80,386.11 is: 120,599.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,264.20 : 205,931.77 = 80,386.11 : x
  2. Step 2: Convert to fraction form
    137,264.20/205,931.77 = 80,386.11/x
  3. Step 3: Cross multiply
    137,264.20x = 205,931.77 × 80,386.11
  4. Step 4: Simplify right side
    137,264.20x = 16,554,053,714.75
  5. Step 5: Solve for x
    x = 16,554,053,714.75/137,264.20
  6. Step 6: Final answer
    x = 120,599.94

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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.