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Finding the Fourth Proportional to 162,001.80, 243,002.70 and 111,482.10

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Solution

The fourth proportional to 162,001.80, 243,002.70 and 111,482.10 is: 167,223.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,001.80 : 243,002.70 = 111,482.10 : x
  2. Step 2: Convert to fraction form
    162,001.80/243,002.70 = 111,482.10/x
  3. Step 3: Cross multiply
    162,001.80x = 243,002.70 × 111,482.10
  4. Step 4: Simplify right side
    162,001.80x = 27,090,451,301.67
  5. Step 5: Solve for x
    x = 27,090,451,301.67/162,001.80
  6. Step 6: Final answer
    x = 167,223.15

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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.