Home / 158,268.92-218,423.24-90,287.39

Finding the Fourth Proportional to 158,268.92, 218,423.24 and 90,287.39

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Solution

The fourth proportional to 158,268.92, 218,423.24 and 90,287.39 is: 124,603.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,268.92 : 218,423.24 = 90,287.39 : x
  2. Step 2: Convert to fraction form
    158,268.92/218,423.24 = 90,287.39/x
  3. Step 3: Cross multiply
    158,268.92x = 218,423.24 × 90,287.39
  4. Step 4: Simplify right side
    158,268.92x = 19,720,864,005.22
  5. Step 5: Solve for x
    x = 19,720,864,005.22/158,268.92
  6. Step 6: Final answer
    x = 124,603.52

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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.