Home / 112,756.38-155,605.41-61,767.96

Finding the Fourth Proportional to 112,756.38, 155,605.41 and 61,767.96

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Solution

The fourth proportional to 112,756.38, 155,605.41 and 61,767.96 is: 85,240.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,756.38 : 155,605.41 = 61,767.96 : x
  2. Step 2: Convert to fraction form
    112,756.38/155,605.41 = 61,767.96/x
  3. Step 3: Cross multiply
    112,756.38x = 155,605.41 × 61,767.96
  4. Step 4: Simplify right side
    112,756.38x = 9,611,428,740.66
  5. Step 5: Solve for x
    x = 9,611,428,740.66/112,756.38
  6. Step 6: Final answer
    x = 85,240.66

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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.