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Finding the Fourth Proportional to 75,155.04, 112,808.52 and 66,662.18

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Solution

The fourth proportional to 75,155.04, 112,808.52 and 66,662.18 is: 100,060.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,155.04 : 112,808.52 = 66,662.18 : x
  2. Step 2: Convert to fraction form
    75,155.04/112,808.52 = 66,662.18/x
  3. Step 3: Cross multiply
    75,155.04x = 112,808.52 × 66,662.18
  4. Step 4: Simplify right side
    75,155.04x = 7,520,061,865.77
  5. Step 5: Solve for x
    x = 7,520,061,865.77/75,155.04
  6. Step 6: Final answer
    x = 100,060.65

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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.