Home / 99,457.12-149,192.16-40,291.48

Finding the Fourth Proportional to 99,457.12, 149,192.16 and 40,291.48

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Solution

The fourth proportional to 99,457.12, 149,192.16 and 40,291.48 is: 60,439.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,457.12 : 149,192.16 = 40,291.48 : x
  2. Step 2: Convert to fraction form
    99,457.12/149,192.16 = 40,291.48/x
  3. Step 3: Cross multiply
    99,457.12x = 149,192.16 × 40,291.48
  4. Step 4: Simplify right side
    99,457.12x = 6,011,172,930.80
  5. Step 5: Solve for x
    x = 6,011,172,930.80/99,457.12
  6. Step 6: Final answer
    x = 60,439.85

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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.