Home / 149,373.40-206,068.62-100,959.88

Finding the Fourth Proportional to 149,373.40, 206,068.62 and 100,959.88

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Solution

The fourth proportional to 149,373.40, 206,068.62 and 100,959.88 is: 139,279.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,373.40 : 206,068.62 = 100,959.88 : x
  2. Step 2: Convert to fraction form
    149,373.40/206,068.62 = 100,959.88/x
  3. Step 3: Cross multiply
    149,373.40x = 206,068.62 × 100,959.88
  4. Step 4: Simplify right side
    149,373.40x = 20,804,663,146.97
  5. Step 5: Solve for x
    x = 20,804,663,146.97/149,373.40
  6. Step 6: Final answer
    x = 139,279.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.