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Finding the Fourth Proportional to 112,269.70, 168,449.10 and 45,714.70

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Solution

The fourth proportional to 112,269.70, 168,449.10 and 45,714.70 is: 68,590.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,269.70 : 168,449.10 = 45,714.70 : x
  2. Step 2: Convert to fraction form
    112,269.70/168,449.10 = 45,714.70/x
  3. Step 3: Cross multiply
    112,269.70x = 168,449.10 × 45,714.70
  4. Step 4: Simplify right side
    112,269.70x = 7,700,600,071.77
  5. Step 5: Solve for x
    x = 7,700,600,071.77/112,269.70
  6. Step 6: Final answer
    x = 68,590.19

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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.