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Finding the Fourth Proportional to 155,236.50, 214,226.64 and 88,168.50

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Solution

The fourth proportional to 155,236.50, 214,226.64 and 88,168.50 is: 121,672.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,236.50 : 214,226.64 = 88,168.50 : x
  2. Step 2: Convert to fraction form
    155,236.50/214,226.64 = 88,168.50/x
  3. Step 3: Cross multiply
    155,236.50x = 214,226.64 × 88,168.50
  4. Step 4: Simplify right side
    155,236.50x = 18,888,041,508.84
  5. Step 5: Solve for x
    x = 18,888,041,508.84/155,236.50
  6. Step 6: Final answer
    x = 121,672.68

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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.