Home / 147,899.03-204,142.46-87,490.68

Finding the Fourth Proportional to 147,899.03, 204,142.46 and 87,490.68

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Solution

The fourth proportional to 147,899.03, 204,142.46 and 87,490.68 is: 120,761.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,899.03 : 204,142.46 = 87,490.68 : x
  2. Step 2: Convert to fraction form
    147,899.03/204,142.46 = 87,490.68/x
  3. Step 3: Cross multiply
    147,899.03x = 204,142.46 × 87,490.68
  4. Step 4: Simplify right side
    147,899.03x = 17,860,561,621.56
  5. Step 5: Solve for x
    x = 17,860,561,621.56/147,899.03
  6. Step 6: Final answer
    x = 120,761.86

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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.