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Finding the Fourth Proportional to 155,166.42, 214,129.80 and 88,098.42

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Solution

The fourth proportional to 155,166.42, 214,129.80 and 88,098.42 is: 121,575.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,166.42 : 214,129.80 = 88,098.42 : x
  2. Step 2: Convert to fraction form
    155,166.42/214,129.80 = 88,098.42/x
  3. Step 3: Cross multiply
    155,166.42x = 214,129.80 × 88,098.42
  4. Step 4: Simplify right side
    155,166.42x = 18,864,497,054.92
  5. Step 5: Solve for x
    x = 18,864,497,054.92/155,166.42
  6. Step 6: Final answer
    x = 121,575.90

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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.