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Finding the Fourth Proportional to 162,537.60, 243,806.40 and 103,634.40

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Solution

The fourth proportional to 162,537.60, 243,806.40 and 103,634.40 is: 155,451.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,537.60 : 243,806.40 = 103,634.40 : x
  2. Step 2: Convert to fraction form
    162,537.60/243,806.40 = 103,634.40/x
  3. Step 3: Cross multiply
    162,537.60x = 243,806.40 × 103,634.40
  4. Step 4: Simplify right side
    162,537.60x = 25,266,729,980.16
  5. Step 5: Solve for x
    x = 25,266,729,980.16/162,537.60
  6. Step 6: Final answer
    x = 155,451.60

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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.