Home / 156,621.60-234,932.40-90,027.45

Finding the Fourth Proportional to 156,621.60, 234,932.40 and 90,027.45

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Solution

The fourth proportional to 156,621.60, 234,932.40 and 90,027.45 is: 135,041.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,621.60 : 234,932.40 = 90,027.45 : x
  2. Step 2: Convert to fraction form
    156,621.60/234,932.40 = 90,027.45/x
  3. Step 3: Cross multiply
    156,621.60x = 234,932.40 × 90,027.45
  4. Step 4: Simplify right side
    156,621.60x = 21,150,364,894.38
  5. Step 5: Solve for x
    x = 21,150,364,894.38/156,621.60
  6. Step 6: Final answer
    x = 135,041.18

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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.