Home / 147,123.48-203,053.05-83,447.76

Finding the Fourth Proportional to 147,123.48, 203,053.05 and 83,447.76

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Solution

The fourth proportional to 147,123.48, 203,053.05 and 83,447.76 is: 115,170.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,123.48 : 203,053.05 = 83,447.76 : x
  2. Step 2: Convert to fraction form
    147,123.48/203,053.05 = 83,447.76/x
  3. Step 3: Cross multiply
    147,123.48x = 203,053.05 × 83,447.76
  4. Step 4: Simplify right side
    147,123.48x = 16,944,322,183.67
  5. Step 5: Solve for x
    x = 16,944,322,183.67/147,123.48
  6. Step 6: Final answer
    x = 115,170.75

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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.