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Finding the Fourth Proportional to 174,579, 240,920.64 and 99,129.12

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Solution

The fourth proportional to 174,579, 240,920.64 and 99,129.12 is: 136,799.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,579 : 240,920.64 = 99,129.12 : x
  2. Step 2: Convert to fraction form
    174,579/240,920.64 = 99,129.12/x
  3. Step 3: Cross multiply
    174,579x = 240,920.64 × 99,129.12
  4. Step 4: Simplify right side
    174,579x = 23,882,251,033.04
  5. Step 5: Solve for x
    x = 23,882,251,033.04/174,579
  6. Step 6: Final answer
    x = 136,799.11

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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.