Home / 99,713.16-137,601.65-54,392.18

Finding the Fourth Proportional to 99,713.16, 137,601.65 and 54,392.18

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Solution

The fourth proportional to 99,713.16, 137,601.65 and 54,392.18 is: 75,059.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,713.16 : 137,601.65 = 54,392.18 : x
  2. Step 2: Convert to fraction form
    99,713.16/137,601.65 = 54,392.18/x
  3. Step 3: Cross multiply
    99,713.16x = 137,601.65 × 54,392.18
  4. Step 4: Simplify right side
    99,713.16x = 7,484,453,163.07
  5. Step 5: Solve for x
    x = 7,484,453,163.07/99,713.16
  6. Step 6: Final answer
    x = 75,059.83

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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.