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Finding the Fourth Proportional to 161,779.60, 242,626.20 and 49,459.60

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Solution

The fourth proportional to 161,779.60, 242,626.20 and 49,459.60 is: 74,176.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,779.60 : 242,626.20 = 49,459.60 : x
  2. Step 2: Convert to fraction form
    161,779.60/242,626.20 = 49,459.60/x
  3. Step 3: Cross multiply
    161,779.60x = 242,626.20 × 49,459.60
  4. Step 4: Simplify right side
    161,779.60x = 12,000,194,801.52
  5. Step 5: Solve for x
    x = 12,000,194,801.52/161,779.60
  6. Step 6: Final answer
    x = 74,176.19

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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.