Home / 112,177.17-154,765.65-71,913.15

Finding the Fourth Proportional to 112,177.17, 154,765.65 and 71,913.15

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Solution

The fourth proportional to 112,177.17, 154,765.65 and 71,913.15 is: 99,215.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,177.17 : 154,765.65 = 71,913.15 : x
  2. Step 2: Convert to fraction form
    112,177.17/154,765.65 = 71,913.15/x
  3. Step 3: Cross multiply
    112,177.17x = 154,765.65 × 71,913.15
  4. Step 4: Simplify right side
    112,177.17x = 11,129,685,403.30
  5. Step 5: Solve for x
    x = 11,129,685,403.30/112,177.17
  6. Step 6: Final answer
    x = 99,215.24

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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.