Home / 102,727.20-154,090.80-74,514.90

Finding the Fourth Proportional to 102,727.20, 154,090.80 and 74,514.90

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Solution

The fourth proportional to 102,727.20, 154,090.80 and 74,514.90 is: 111,772.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,727.20 : 154,090.80 = 74,514.90 : x
  2. Step 2: Convert to fraction form
    102,727.20/154,090.80 = 74,514.90/x
  3. Step 3: Cross multiply
    102,727.20x = 154,090.80 × 74,514.90
  4. Step 4: Simplify right side
    102,727.20x = 11,482,060,552.92
  5. Step 5: Solve for x
    x = 11,482,060,552.92/102,727.20
  6. Step 6: Final answer
    x = 111,772.35

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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.