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Finding the Fourth Proportional to 155,503.34, 214,601.52 and 87,524.72

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Solution

The fourth proportional to 155,503.34, 214,601.52 and 87,524.72 is: 120,788.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,503.34 : 214,601.52 = 87,524.72 : x
  2. Step 2: Convert to fraction form
    155,503.34/214,601.52 = 87,524.72/x
  3. Step 3: Cross multiply
    155,503.34x = 214,601.52 × 87,524.72
  4. Step 4: Simplify right side
    155,503.34x = 18,782,937,517.21
  5. Step 5: Solve for x
    x = 18,782,937,517.21/155,503.34
  6. Step 6: Final answer
    x = 120,788.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.