Home / 112,203.35-154,655.76-79,455.76

Finding the Fourth Proportional to 112,203.35, 154,655.76 and 79,455.76

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Solution

The fourth proportional to 112,203.35, 154,655.76 and 79,455.76 is: 109,518.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,203.35 : 154,655.76 = 79,455.76 : x
  2. Step 2: Convert to fraction form
    112,203.35/154,655.76 = 79,455.76/x
  3. Step 3: Cross multiply
    112,203.35x = 154,655.76 × 79,455.76
  4. Step 4: Simplify right side
    112,203.35x = 12,288,290,625.06
  5. Step 5: Solve for x
    x = 12,288,290,625.06/112,203.35
  6. Step 6: Final answer
    x = 109,518.04

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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.