Home / 147,814.76-203,919.56-90,456.84

Finding the Fourth Proportional to 147,814.76, 203,919.56 and 90,456.84

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Solution

The fourth proportional to 147,814.76, 203,919.56 and 90,456.84 is: 124,790.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,814.76 : 203,919.56 = 90,456.84 : x
  2. Step 2: Convert to fraction form
    147,814.76/203,919.56 = 90,456.84/x
  3. Step 3: Cross multiply
    147,814.76x = 203,919.56 × 90,456.84
  4. Step 4: Simplify right side
    147,814.76x = 18,445,919,011.79
  5. Step 5: Solve for x
    x = 18,445,919,011.79/147,814.76
  6. Step 6: Final answer
    x = 124,790.78

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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.