Home / 112,317.44-168,330.40-45,680

Finding the Fourth Proportional to 112,317.44, 168,330.40 and 45,680

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Solution

The fourth proportional to 112,317.44, 168,330.40 and 45,680 is: 68,460.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,317.44 : 168,330.40 = 45,680 : x
  2. Step 2: Convert to fraction form
    112,317.44/168,330.40 = 45,680/x
  3. Step 3: Cross multiply
    112,317.44x = 168,330.40 × 45,680
  4. Step 4: Simplify right side
    112,317.44x = 7,689,332,672
  5. Step 5: Solve for x
    x = 7,689,332,672/112,317.44
  6. Step 6: Final answer
    x = 68,460.72

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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.