Home / 112,086.80-154,679.60-61,785.84

Finding the Fourth Proportional to 112,086.80, 154,679.60 and 61,785.84

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Solution

The fourth proportional to 112,086.80, 154,679.60 and 61,785.84 is: 85,264.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,086.80 : 154,679.60 = 61,785.84 : x
  2. Step 2: Convert to fraction form
    112,086.80/154,679.60 = 61,785.84/x
  3. Step 3: Cross multiply
    112,086.80x = 154,679.60 × 61,785.84
  4. Step 4: Simplify right side
    112,086.80x = 9,557,009,016.86
  5. Step 5: Solve for x
    x = 9,557,009,016.86/112,086.80
  6. Step 6: Final answer
    x = 85,264.36

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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.