Home / 136,920.17-205,403.60-61,046.24

Finding the Fourth Proportional to 136,920.17, 205,403.60 and 61,046.24

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Solution

The fourth proportional to 136,920.17, 205,403.60 and 61,046.24 is: 91,579.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,920.17 : 205,403.60 = 61,046.24 : x
  2. Step 2: Convert to fraction form
    136,920.17/205,403.60 = 61,046.24/x
  3. Step 3: Cross multiply
    136,920.17x = 205,403.60 × 61,046.24
  4. Step 4: Simplify right side
    136,920.17x = 12,539,116,130.21
  5. Step 5: Solve for x
    x = 12,539,116,130.21/136,920.17
  6. Step 6: Final answer
    x = 91,579.76

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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.