Home / 102,614.10-153,921.15-90,863.70

Finding the Fourth Proportional to 102,614.10, 153,921.15 and 90,863.70

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Solution

The fourth proportional to 102,614.10, 153,921.15 and 90,863.70 is: 136,295.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,614.10 : 153,921.15 = 90,863.70 : x
  2. Step 2: Convert to fraction form
    102,614.10/153,921.15 = 90,863.70/x
  3. Step 3: Cross multiply
    102,614.10x = 153,921.15 × 90,863.70
  4. Step 4: Simplify right side
    102,614.10x = 13,985,845,197.26
  5. Step 5: Solve for x
    x = 13,985,845,197.26/102,614.10
  6. Step 6: Final answer
    x = 136,295.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.