Home / 151,951.55-209,705.76-83,981.80

Finding the Fourth Proportional to 151,951.55, 209,705.76 and 83,981.80

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Solution

The fourth proportional to 151,951.55, 209,705.76 and 83,981.80 is: 115,901.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,951.55 : 209,705.76 = 83,981.80 : x
  2. Step 2: Convert to fraction form
    151,951.55/209,705.76 = 83,981.80/x
  3. Step 3: Cross multiply
    151,951.55x = 209,705.76 × 83,981.80
  4. Step 4: Simplify right side
    151,951.55x = 17,611,466,146.64
  5. Step 5: Solve for x
    x = 17,611,466,146.64/151,951.55
  6. Step 6: Final answer
    x = 115,901.85

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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.