Home / 99,226.17-136,932.38-53,903.78

Finding the Fourth Proportional to 99,226.17, 136,932.38 and 53,903.78

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Solution

The fourth proportional to 99,226.17, 136,932.38 and 53,903.78 is: 74,387.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,226.17 : 136,932.38 = 53,903.78 : x
  2. Step 2: Convert to fraction form
    99,226.17/136,932.38 = 53,903.78/x
  3. Step 3: Cross multiply
    99,226.17x = 136,932.38 × 53,903.78
  4. Step 4: Simplify right side
    99,226.17x = 7,381,172,959.21
  5. Step 5: Solve for x
    x = 7,381,172,959.21/99,226.17
  6. Step 6: Final answer
    x = 74,387.36

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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.