Home / 136,876.04-205,319.88-43,379.72

Finding the Fourth Proportional to 136,876.04, 205,319.88 and 43,379.72

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Solution

The fourth proportional to 136,876.04, 205,319.88 and 43,379.72 is: 65,071.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,876.04 : 205,319.88 = 43,379.72 : x
  2. Step 2: Convert to fraction form
    136,876.04/205,319.88 = 43,379.72/x
  3. Step 3: Cross multiply
    136,876.04x = 205,319.88 × 43,379.72
  4. Step 4: Simplify right side
    136,876.04x = 8,906,718,904.83
  5. Step 5: Solve for x
    x = 8,906,718,904.83/136,876.04
  6. Step 6: Final answer
    x = 65,071.42

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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.