Home / 89,868.80-134,953.58-86,292.92

Finding the Fourth Proportional to 89,868.80, 134,953.58 and 86,292.92

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Solution

The fourth proportional to 89,868.80, 134,953.58 and 86,292.92 is: 129,583.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,868.80 : 134,953.58 = 86,292.92 : x
  2. Step 2: Convert to fraction form
    89,868.80/134,953.58 = 86,292.92/x
  3. Step 3: Cross multiply
    89,868.80x = 134,953.58 × 86,292.92
  4. Step 4: Simplify right side
    89,868.80x = 11,645,538,482.65
  5. Step 5: Solve for x
    x = 11,645,538,482.65/89,868.80
  6. Step 6: Final answer
    x = 129,583.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.