Home / 158,817.47-219,105.60-90,797.90

Finding the Fourth Proportional to 158,817.47, 219,105.60 and 90,797.90

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Solution

The fourth proportional to 158,817.47, 219,105.60 and 90,797.90 is: 125,265.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,817.47 : 219,105.60 = 90,797.90 : x
  2. Step 2: Convert to fraction form
    158,817.47/219,105.60 = 90,797.90/x
  3. Step 3: Cross multiply
    158,817.47x = 219,105.60 × 90,797.90
  4. Step 4: Simplify right side
    158,817.47x = 19,894,326,808.72
  5. Step 5: Solve for x
    x = 19,894,326,808.72/158,817.47
  6. Step 6: Final answer
    x = 125,265.36

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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.