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Finding the Fourth Proportional to 74,179.92, 110,730.28 and 68,697.84

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Solution

The fourth proportional to 74,179.92, 110,730.28 and 68,697.84 is: 102,547.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,179.92 : 110,730.28 = 68,697.84 : x
  2. Step 2: Convert to fraction form
    74,179.92/110,730.28 = 68,697.84/x
  3. Step 3: Cross multiply
    74,179.92x = 110,730.28 × 68,697.84
  4. Step 4: Simplify right side
    74,179.92x = 7,606,930,886.85
  5. Step 5: Solve for x
    x = 7,606,930,886.85/74,179.92
  6. Step 6: Final answer
    x = 102,547.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.