Home / 99,759.48-148,909.35-87,950.04

Finding the Fourth Proportional to 99,759.48, 148,909.35 and 87,950.04

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Solution

The fourth proportional to 99,759.48, 148,909.35 and 87,950.04 is: 131,281.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,759.48 : 148,909.35 = 87,950.04 : x
  2. Step 2: Convert to fraction form
    99,759.48/148,909.35 = 87,950.04/x
  3. Step 3: Cross multiply
    99,759.48x = 148,909.35 × 87,950.04
  4. Step 4: Simplify right side
    99,759.48x = 13,096,583,288.87
  5. Step 5: Solve for x
    x = 13,096,583,288.87/99,759.48
  6. Step 6: Final answer
    x = 131,281.59

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.