Home / 178,780.01-268,165.86-90,009.68

Finding the Fourth Proportional to 178,780.01, 268,165.86 and 90,009.68

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Solution

The fourth proportional to 178,780.01, 268,165.86 and 90,009.68 is: 135,012.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,780.01 : 268,165.86 = 90,009.68 : x
  2. Step 2: Convert to fraction form
    178,780.01/268,165.86 = 90,009.68/x
  3. Step 3: Cross multiply
    178,780.01x = 268,165.86 × 90,009.68
  4. Step 4: Simplify right side
    178,780.01x = 24,137,522,575.11
  5. Step 5: Solve for x
    x = 24,137,522,575.11/178,780.01
  6. Step 6: Final answer
    x = 135,012.43

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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.