Home / 99,724.65-149,615.12-40,602.75

Finding the Fourth Proportional to 99,724.65, 149,615.12 and 40,602.75

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Solution

The fourth proportional to 99,724.65, 149,615.12 and 40,602.75 is: 60,915.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,724.65 : 149,615.12 = 40,602.75 : x
  2. Step 2: Convert to fraction form
    99,724.65/149,615.12 = 40,602.75/x
  3. Step 3: Cross multiply
    99,724.65x = 149,615.12 × 40,602.75
  4. Step 4: Simplify right side
    99,724.65x = 6,074,785,110.57
  5. Step 5: Solve for x
    x = 6,074,785,110.57/99,724.65
  6. Step 6: Final answer
    x = 60,915.58

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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.