Home / 99,985.19-149,977.92-40,040.66

Finding the Fourth Proportional to 99,985.19, 149,977.92 and 40,040.66

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Solution

The fourth proportional to 99,985.19, 149,977.92 and 40,040.66 is: 60,061.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,985.19 : 149,977.92 = 40,040.66 : x
  2. Step 2: Convert to fraction form
    99,985.19/149,977.92 = 40,040.66/x
  3. Step 3: Cross multiply
    99,985.19x = 149,977.92 × 40,040.66
  4. Step 4: Simplify right side
    99,985.19x = 6,005,214,152.34
  5. Step 5: Solve for x
    x = 6,005,214,152.34/99,985.19
  6. Step 6: Final answer
    x = 60,061.04

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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.