Home / 112,176.24-154,792.45-61,872

Finding the Fourth Proportional to 112,176.24, 154,792.45 and 61,872

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Solution

The fourth proportional to 112,176.24, 154,792.45 and 61,872 is: 85,377.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,176.24 : 154,792.45 = 61,872 : x
  2. Step 2: Convert to fraction form
    112,176.24/154,792.45 = 61,872/x
  3. Step 3: Cross multiply
    112,176.24x = 154,792.45 × 61,872
  4. Step 4: Simplify right side
    112,176.24x = 9,577,318,466.40
  5. Step 5: Solve for x
    x = 9,577,318,466.40/112,176.24
  6. Step 6: Final answer
    x = 85,377.42

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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.