Home / 112,225.72-155,076.80-106,758.76

Finding the Fourth Proportional to 112,225.72, 155,076.80 and 106,758.76

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Solution

The fourth proportional to 112,225.72, 155,076.80 and 106,758.76 is: 147,522.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,225.72 : 155,076.80 = 106,758.76 : x
  2. Step 2: Convert to fraction form
    112,225.72/155,076.80 = 106,758.76/x
  3. Step 3: Cross multiply
    112,225.72x = 155,076.80 × 106,758.76
  4. Step 4: Simplify right side
    112,225.72x = 16,555,806,872.77
  5. Step 5: Solve for x
    x = 16,555,806,872.77/112,225.72
  6. Step 6: Final answer
    x = 147,522.39

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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.