Home / 99,001.40-148,502.10-87,920.60

Finding the Fourth Proportional to 99,001.40, 148,502.10 and 87,920.60

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Solution

The fourth proportional to 99,001.40, 148,502.10 and 87,920.60 is: 131,880.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,001.40 : 148,502.10 = 87,920.60 : x
  2. Step 2: Convert to fraction form
    99,001.40/148,502.10 = 87,920.60/x
  3. Step 3: Cross multiply
    99,001.40x = 148,502.10 × 87,920.60
  4. Step 4: Simplify right side
    99,001.40x = 13,056,393,733.26
  5. Step 5: Solve for x
    x = 13,056,393,733.26/99,001.40
  6. Step 6: Final answer
    x = 131,880.90

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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.