Home / 112,363.32-155,123.67-76,605.87

Finding the Fourth Proportional to 112,363.32, 155,123.67 and 76,605.87

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Solution

The fourth proportional to 112,363.32, 155,123.67 and 76,605.87 is: 105,758.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,363.32 : 155,123.67 = 76,605.87 : x
  2. Step 2: Convert to fraction form
    112,363.32/155,123.67 = 76,605.87/x
  3. Step 3: Cross multiply
    112,363.32x = 155,123.67 × 76,605.87
  4. Step 4: Simplify right side
    112,363.32x = 11,883,383,697.94
  5. Step 5: Solve for x
    x = 11,883,383,697.94/112,363.32
  6. Step 6: Final answer
    x = 105,758.57

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1.5x scale

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.