Home / 99,117.10-148,371.90-54,607.60

Finding the Fourth Proportional to 99,117.10, 148,371.90 and 54,607.60

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Solution

The fourth proportional to 99,117.10, 148,371.90 and 54,607.60 is: 81,744.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,117.10 : 148,371.90 = 54,607.60 : x
  2. Step 2: Convert to fraction form
    99,117.10/148,371.90 = 54,607.60/x
  3. Step 3: Cross multiply
    99,117.10x = 148,371.90 × 54,607.60
  4. Step 4: Simplify right side
    99,117.10x = 8,102,233,366.44
  5. Step 5: Solve for x
    x = 8,102,233,366.44/99,117.10
  6. Step 6: Final answer
    x = 81,744.05

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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.