Home / 112,309.40-168,318.42-45,671.96

Finding the Fourth Proportional to 112,309.40, 168,318.42 and 45,671.96

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Solution

The fourth proportional to 112,309.40, 168,318.42 and 45,671.96 is: 68,448.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,309.40 : 168,318.42 = 45,671.96 : x
  2. Step 2: Convert to fraction form
    112,309.40/168,318.42 = 45,671.96/x
  3. Step 3: Cross multiply
    112,309.40x = 168,318.42 × 45,671.96
  4. Step 4: Simplify right side
    112,309.40x = 7,687,432,145.50
  5. Step 5: Solve for x
    x = 7,687,432,145.50/112,309.40
  6. Step 6: Final answer
    x = 68,448.70

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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.