Home / 112,205.85-154,659.21-79,458.27

Finding the Fourth Proportional to 112,205.85, 154,659.21 and 79,458.27

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Solution

The fourth proportional to 112,205.85, 154,659.21 and 79,458.27 is: 109,521.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,205.85 : 154,659.21 = 79,458.27 : x
  2. Step 2: Convert to fraction form
    112,205.85/154,659.21 = 79,458.27/x
  3. Step 3: Cross multiply
    112,205.85x = 154,659.21 × 79,458.27
  4. Step 4: Simplify right side
    112,205.85x = 12,288,953,266.17
  5. Step 5: Solve for x
    x = 12,288,953,266.17/112,205.85
  6. Step 6: Final answer
    x = 109,521.50

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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.