Home / 111,098.39-153,156.29-79,211.93

Finding the Fourth Proportional to 111,098.39, 153,156.29 and 79,211.93

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Solution

The fourth proportional to 111,098.39, 153,156.29 and 79,211.93 is: 109,198.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,098.39 : 153,156.29 = 79,211.93 : x
  2. Step 2: Convert to fraction form
    111,098.39/153,156.29 = 79,211.93/x
  3. Step 3: Cross multiply
    111,098.39x = 153,156.29 × 79,211.93
  4. Step 4: Simplify right side
    111,098.39x = 12,131,804,160.70
  5. Step 5: Solve for x
    x = 12,131,804,160.70/111,098.39
  6. Step 6: Final answer
    x = 109,198.74

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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.