Home / 99,116.10-148,370.40-54,606.60

Finding the Fourth Proportional to 99,116.10, 148,370.40 and 54,606.60

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Solution

The fourth proportional to 99,116.10, 148,370.40 and 54,606.60 is: 81,742.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,116.10 : 148,370.40 = 54,606.60 : x
  2. Step 2: Convert to fraction form
    99,116.10/148,370.40 = 54,606.60/x
  3. Step 3: Cross multiply
    99,116.10x = 148,370.40 × 54,606.60
  4. Step 4: Simplify right side
    99,116.10x = 8,102,003,084.64
  5. Step 5: Solve for x
    x = 8,102,003,084.64/99,116.10
  6. Step 6: Final answer
    x = 81,742.55

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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.