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Finding the Fourth Proportional to 162,379.20, 243,605.70 and 73,658.10

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Solution

The fourth proportional to 162,379.20, 243,605.70 and 73,658.10 is: 110,503.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,379.20 : 243,605.70 = 73,658.10 : x
  2. Step 2: Convert to fraction form
    162,379.20/243,605.70 = 73,658.10/x
  3. Step 3: Cross multiply
    162,379.20x = 243,605.70 × 73,658.10
  4. Step 4: Simplify right side
    162,379.20x = 17,943,533,011.17
  5. Step 5: Solve for x
    x = 17,943,533,011.17/162,379.20
  6. Step 6: Final answer
    x = 110,503.89

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1.5x scale

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.