Home / 162,078.20-243,136.70-49,743.72

Finding the Fourth Proportional to 162,078.20, 243,136.70 and 49,743.72

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Solution

The fourth proportional to 162,078.20, 243,136.70 and 49,743.72 is: 74,621.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,078.20 : 243,136.70 = 49,743.72 : x
  2. Step 2: Convert to fraction form
    162,078.20/243,136.70 = 49,743.72/x
  3. Step 3: Cross multiply
    162,078.20x = 243,136.70 × 49,743.72
  4. Step 4: Simplify right side
    162,078.20x = 12,094,523,926.52
  5. Step 5: Solve for x
    x = 12,094,523,926.52/162,078.20
  6. Step 6: Final answer
    x = 74,621.53

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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.