Home / 99,318.25-137,056.30-56,301.73

Finding the Fourth Proportional to 99,318.25, 137,056.30 and 56,301.73

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Solution

The fourth proportional to 99,318.25, 137,056.30 and 56,301.73 is: 77,694.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,318.25 : 137,056.30 = 56,301.73 : x
  2. Step 2: Convert to fraction form
    99,318.25/137,056.30 = 56,301.73/x
  3. Step 3: Cross multiply
    99,318.25x = 137,056.30 × 56,301.73
  4. Step 4: Simplify right side
    99,318.25x = 7,716,507,401.64
  5. Step 5: Solve for x
    x = 7,716,507,401.64/99,318.25
  6. Step 6: Final answer
    x = 77,694.76

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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.