Home / 102,616.10-153,924.15-90,865.70

Finding the Fourth Proportional to 102,616.10, 153,924.15 and 90,865.70

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Solution

The fourth proportional to 102,616.10, 153,924.15 and 90,865.70 is: 136,298.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,616.10 : 153,924.15 = 90,865.70 : x
  2. Step 2: Convert to fraction form
    102,616.10/153,924.15 = 90,865.70/x
  3. Step 3: Cross multiply
    102,616.10x = 153,924.15 × 90,865.70
  4. Step 4: Simplify right side
    102,616.10x = 13,986,425,636.66
  5. Step 5: Solve for x
    x = 13,986,425,636.66/102,616.10
  6. Step 6: Final answer
    x = 136,298.55

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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.