Home / 151,657.41-209,286.63-83,678.61

Finding the Fourth Proportional to 151,657.41, 209,286.63 and 83,678.61

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Solution

The fourth proportional to 151,657.41, 209,286.63 and 83,678.61 is: 115,476.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,657.41 : 209,286.63 = 83,678.61 : x
  2. Step 2: Convert to fraction form
    151,657.41/209,286.63 = 83,678.61/x
  3. Step 3: Cross multiply
    151,657.41x = 209,286.63 × 83,678.61
  4. Step 4: Simplify right side
    151,657.41x = 17,512,813,871.59
  5. Step 5: Solve for x
    x = 17,512,813,871.59/151,657.41
  6. Step 6: Final answer
    x = 115,476.15

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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.