Home / 99,537.40-148,868.70-75,917.80

Finding the Fourth Proportional to 99,537.40, 148,868.70 and 75,917.80

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Solution

The fourth proportional to 99,537.40, 148,868.70 and 75,917.80 is: 113,543.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,537.40 : 148,868.70 = 75,917.80 : x
  2. Step 2: Convert to fraction form
    99,537.40/148,868.70 = 75,917.80/x
  3. Step 3: Cross multiply
    99,537.40x = 148,868.70 × 75,917.80
  4. Step 4: Simplify right side
    99,537.40x = 11,301,784,192.86
  5. Step 5: Solve for x
    x = 11,301,784,192.86/99,537.40
  6. Step 6: Final answer
    x = 113,543.09

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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.