Home / 147,390.05-203,340.52-90,703.01

Finding the Fourth Proportional to 147,390.05, 203,340.52 and 90,703.01

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Solution

The fourth proportional to 147,390.05, 203,340.52 and 90,703.01 is: 125,134.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,390.05 : 203,340.52 = 90,703.01 : x
  2. Step 2: Convert to fraction form
    147,390.05/203,340.52 = 90,703.01/x
  3. Step 3: Cross multiply
    147,390.05x = 203,340.52 × 90,703.01
  4. Step 4: Simplify right side
    147,390.05x = 18,443,597,218.97
  5. Step 5: Solve for x
    x = 18,443,597,218.97/147,390.05
  6. Step 6: Final answer
    x = 125,134.62

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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.