Home / 112,276.14-168,268.32-45,638.70

Finding the Fourth Proportional to 112,276.14, 168,268.32 and 45,638.70

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Solution

The fourth proportional to 112,276.14, 168,268.32 and 45,638.70 is: 68,398.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,276.14 : 168,268.32 = 45,638.70 : x
  2. Step 2: Convert to fraction form
    112,276.14/168,268.32 = 45,638.70/x
  3. Step 3: Cross multiply
    112,276.14x = 168,268.32 × 45,638.70
  4. Step 4: Simplify right side
    112,276.14x = 7,679,547,375.98
  5. Step 5: Solve for x
    x = 7,679,547,375.98/112,276.14
  6. Step 6: Final answer
    x = 68,398.75

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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.