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Finding the Fourth Proportional to 161,449.80, 242,145.90 and 102,179.40

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Solution

The fourth proportional to 161,449.80, 242,145.90 and 102,179.40 is: 153,250.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,449.80 : 242,145.90 = 102,179.40 : x
  2. Step 2: Convert to fraction form
    161,449.80/242,145.90 = 102,179.40/x
  3. Step 3: Cross multiply
    161,449.80x = 242,145.90 × 102,179.40
  4. Step 4: Simplify right side
    161,449.80x = 24,742,322,774.46
  5. Step 5: Solve for x
    x = 24,742,322,774.46/161,449.80
  6. Step 6: Final answer
    x = 153,250.87

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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.