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Finding the Fourth Proportional to 162,374.60, 243,561.90 and 103,471.40

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Solution

The fourth proportional to 162,374.60, 243,561.90 and 103,471.40 is: 155,207.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,374.60 : 243,561.90 = 103,471.40 : x
  2. Step 2: Convert to fraction form
    162,374.60/243,561.90 = 103,471.40/x
  3. Step 3: Cross multiply
    162,374.60x = 243,561.90 × 103,471.40
  4. Step 4: Simplify right side
    162,374.60x = 25,201,690,779.66
  5. Step 5: Solve for x
    x = 25,201,690,779.66/162,374.60
  6. Step 6: Final answer
    x = 155,207.10

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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.