Home / 99,734.19-137,632.52-56,713.68

Finding the Fourth Proportional to 99,734.19, 137,632.52 and 56,713.68

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Solution

The fourth proportional to 99,734.19, 137,632.52 and 56,713.68 is: 78,264.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,734.19 : 137,632.52 = 56,713.68 : x
  2. Step 2: Convert to fraction form
    99,734.19/137,632.52 = 56,713.68/x
  3. Step 3: Cross multiply
    99,734.19x = 137,632.52 × 56,713.68
  4. Step 4: Simplify right side
    99,734.19x = 7,805,646,696.87
  5. Step 5: Solve for x
    x = 7,805,646,696.87/99,734.19
  6. Step 6: Final answer
    x = 78,264.50

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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.