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Finding the Fourth Proportional to 180,102.72, 270,154.08 and 67,808.13

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Solution

The fourth proportional to 180,102.72, 270,154.08 and 67,808.13 is: 101,712.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,102.72 : 270,154.08 = 67,808.13 : x
  2. Step 2: Convert to fraction form
    180,102.72/270,154.08 = 67,808.13/x
  3. Step 3: Cross multiply
    180,102.72x = 270,154.08 × 67,808.13
  4. Step 4: Simplify right side
    180,102.72x = 18,318,642,818.76
  5. Step 5: Solve for x
    x = 18,318,642,818.76/180,102.72
  6. Step 6: Final answer
    x = 101,712.19

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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.