Home / 99,941.16-137,998.20-61,756.12

Finding the Fourth Proportional to 99,941.16, 137,998.20 and 61,756.12

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Solution

The fourth proportional to 99,941.16, 137,998.20 and 61,756.12 is: 85,272.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,941.16 : 137,998.20 = 61,756.12 : x
  2. Step 2: Convert to fraction form
    99,941.16/137,998.20 = 61,756.12/x
  3. Step 3: Cross multiply
    99,941.16x = 137,998.20 × 61,756.12
  4. Step 4: Simplify right side
    99,941.16x = 8,522,233,398.98
  5. Step 5: Solve for x
    x = 8,522,233,398.98/99,941.16
  6. Step 6: Final answer
    x = 85,272.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.