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Finding the Fourth Proportional to 162,171.40, 243,141.90 and 73,467.40

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Solution

The fourth proportional to 162,171.40, 243,141.90 and 73,467.40 is: 110,148.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,171.40 : 243,141.90 = 73,467.40 : x
  2. Step 2: Convert to fraction form
    162,171.40/243,141.90 = 73,467.40/x
  3. Step 3: Cross multiply
    162,171.40x = 243,141.90 × 73,467.40
  4. Step 4: Simplify right side
    162,171.40x = 17,863,003,224.06
  5. Step 5: Solve for x
    x = 17,863,003,224.06/162,171.40
  6. Step 6: Final answer
    x = 110,148.91

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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.