Home / 99,441.94-148,966.07-86,976.04

Finding the Fourth Proportional to 99,441.94, 148,966.07 and 86,976.04

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Solution

The fourth proportional to 99,441.94, 148,966.07 and 86,976.04 is: 130,291.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,441.94 : 148,966.07 = 86,976.04 : x
  2. Step 2: Convert to fraction form
    99,441.94/148,966.07 = 86,976.04/x
  3. Step 3: Cross multiply
    99,441.94x = 148,966.07 × 86,976.04
  4. Step 4: Simplify right side
    99,441.94x = 12,956,478,862.96
  5. Step 5: Solve for x
    x = 12,956,478,862.96/99,441.94
  6. Step 6: Final answer
    x = 130,291.90

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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.