Home / 99,185.28-148,803.08-45,915.69

Finding the Fourth Proportional to 99,185.28, 148,803.08 and 45,915.69

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Solution

The fourth proportional to 99,185.28, 148,803.08 and 45,915.69 is: 68,885.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,185.28 : 148,803.08 = 45,915.69 : x
  2. Step 2: Convert to fraction form
    99,185.28/148,803.08 = 45,915.69/x
  3. Step 3: Cross multiply
    99,185.28x = 148,803.08 × 45,915.69
  4. Step 4: Simplify right side
    99,185.28x = 6,832,395,862.75
  5. Step 5: Solve for x
    x = 6,832,395,862.75/99,185.28
  6. Step 6: Final answer
    x = 68,885.18

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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.