Home / 151,951.17-209,705.24-83,981.41

Finding the Fourth Proportional to 151,951.17, 209,705.24 and 83,981.41

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Solution

The fourth proportional to 151,951.17, 209,705.24 and 83,981.41 is: 115,901.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,951.17 : 209,705.24 = 83,981.41 : x
  2. Step 2: Convert to fraction form
    151,951.17/209,705.24 = 83,981.41/x
  3. Step 3: Cross multiply
    151,951.17x = 209,705.24 × 83,981.41
  4. Step 4: Simplify right side
    151,951.17x = 17,611,341,739.59
  5. Step 5: Solve for x
    x = 17,611,341,739.59/151,951.17
  6. Step 6: Final answer
    x = 115,901.32

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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.