Home / 112,369.15-155,063.49-61,381.14

Finding the Fourth Proportional to 112,369.15, 155,063.49 and 61,381.14

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Solution

The fourth proportional to 112,369.15, 155,063.49 and 61,381.14 is: 84,702.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,369.15 : 155,063.49 = 61,381.14 : x
  2. Step 2: Convert to fraction form
    112,369.15/155,063.49 = 61,381.14/x
  3. Step 3: Cross multiply
    112,369.15x = 155,063.49 × 61,381.14
  4. Step 4: Simplify right side
    112,369.15x = 9,517,973,788.58
  5. Step 5: Solve for x
    x = 9,517,973,788.58/112,369.15
  6. Step 6: Final answer
    x = 84,702.73

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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.