Home / 158,084.39-218,160.20-90,107.71

Finding the Fourth Proportional to 158,084.39, 218,160.20 and 90,107.71

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Solution

The fourth proportional to 158,084.39, 218,160.20 and 90,107.71 is: 124,350.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,084.39 : 218,160.20 = 90,107.71 : x
  2. Step 2: Convert to fraction form
    158,084.39/218,160.20 = 90,107.71/x
  3. Step 3: Cross multiply
    158,084.39x = 218,160.20 × 90,107.71
  4. Step 4: Simplify right side
    158,084.39x = 19,657,915,715.01
  5. Step 5: Solve for x
    x = 19,657,915,715.01/158,084.39
  6. Step 6: Final answer
    x = 124,350.77

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1.5x scale

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.