Home / 147,620.40-203,645.98-87,150.53

Finding the Fourth Proportional to 147,620.40, 203,645.98 and 87,150.53

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Solution

The fourth proportional to 147,620.40, 203,645.98 and 87,150.53 is: 120,226.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,620.40 : 203,645.98 = 87,150.53 : x
  2. Step 2: Convert to fraction form
    147,620.40/203,645.98 = 87,150.53/x
  3. Step 3: Cross multiply
    147,620.40x = 203,645.98 × 87,150.53
  4. Step 4: Simplify right side
    147,620.40x = 17,747,854,561.91
  5. Step 5: Solve for x
    x = 17,747,854,561.91/147,620.40
  6. Step 6: Final answer
    x = 120,226.30

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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.