Home / 112,758.40-155,535.78-72,524.44

Finding the Fourth Proportional to 112,758.40, 155,535.78 and 72,524.44

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Solution

The fourth proportional to 112,758.40, 155,535.78 and 72,524.44 is: 100,038.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,758.40 : 155,535.78 = 72,524.44 : x
  2. Step 2: Convert to fraction form
    112,758.40/155,535.78 = 72,524.44/x
  3. Step 3: Cross multiply
    112,758.40x = 155,535.78 × 72,524.44
  4. Step 4: Simplify right side
    112,758.40x = 11,280,145,344.46
  5. Step 5: Solve for x
    x = 11,280,145,344.46/112,758.40
  6. Step 6: Final answer
    x = 100,038.18

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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.