Home / 112,119.70-154,726.40-61,132.02

Finding the Fourth Proportional to 112,119.70, 154,726.40 and 61,132.02

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Solution

The fourth proportional to 112,119.70, 154,726.40 and 61,132.02 is: 84,362.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,119.70 : 154,726.40 = 61,132.02 : x
  2. Step 2: Convert to fraction form
    112,119.70/154,726.40 = 61,132.02/x
  3. Step 3: Cross multiply
    112,119.70x = 154,726.40 × 61,132.02
  4. Step 4: Simplify right side
    112,119.70x = 9,458,737,379.33
  5. Step 5: Solve for x
    x = 9,458,737,379.33/112,119.70
  6. Step 6: Final answer
    x = 84,362.85

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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.