Home / 112,875.12-169,311.60-68,514.12

Finding the Fourth Proportional to 112,875.12, 169,311.60 and 68,514.12

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Solution

The fourth proportional to 112,875.12, 169,311.60 and 68,514.12 is: 102,770.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,875.12 : 169,311.60 = 68,514.12 : x
  2. Step 2: Convert to fraction form
    112,875.12/169,311.60 = 68,514.12/x
  3. Step 3: Cross multiply
    112,875.12x = 169,311.60 × 68,514.12
  4. Step 4: Simplify right side
    112,875.12x = 11,600,235,279.79
  5. Step 5: Solve for x
    x = 11,600,235,279.79/112,875.12
  6. Step 6: Final answer
    x = 102,770.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.