Home / 137,746.53-206,422.68-78,459.81

Finding the Fourth Proportional to 137,746.53, 206,422.68 and 78,459.81

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Solution

The fourth proportional to 137,746.53, 206,422.68 and 78,459.81 is: 117,577.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,746.53 : 206,422.68 = 78,459.81 : x
  2. Step 2: Convert to fraction form
    137,746.53/206,422.68 = 78,459.81/x
  3. Step 3: Cross multiply
    137,746.53x = 206,422.68 × 78,459.81
  4. Step 4: Simplify right side
    137,746.53x = 16,195,884,252.49
  5. Step 5: Solve for x
    x = 16,195,884,252.49/137,746.53
  6. Step 6: Final answer
    x = 117,577.44

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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.