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Finding the Fourth Proportional to 162,393.46, 243,590.20 and 57,187.78

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Solution

The fourth proportional to 162,393.46, 243,590.20 and 57,187.78 is: 85,781.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,393.46 : 243,590.20 = 57,187.78 : x
  2. Step 2: Convert to fraction form
    162,393.46/243,590.20 = 57,187.78/x
  3. Step 3: Cross multiply
    162,393.46x = 243,590.20 × 57,187.78
  4. Step 4: Simplify right side
    162,393.46x = 13,930,382,767.76
  5. Step 5: Solve for x
    x = 13,930,382,767.76/162,393.46
  6. Step 6: Final answer
    x = 85,781.67

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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.