Home / 132,981.86-199,367.76-66,385.28

Finding the Fourth Proportional to 132,981.86, 199,367.76 and 66,385.28

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Solution

The fourth proportional to 132,981.86, 199,367.76 and 66,385.28 is: 99,525.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,981.86 : 199,367.76 = 66,385.28 : x
  2. Step 2: Convert to fraction form
    132,981.86/199,367.76 = 66,385.28/x
  3. Step 3: Cross multiply
    132,981.86x = 199,367.76 × 66,385.28
  4. Step 4: Simplify right side
    132,981.86x = 13,235,084,570.57
  5. Step 5: Solve for x
    x = 13,235,084,570.57/132,981.86
  6. Step 6: Final answer
    x = 99,525.49

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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.