Home / 159,003.10-219,424.44-87,381.59

Finding the Fourth Proportional to 159,003.10, 219,424.44 and 87,381.59

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Solution

The fourth proportional to 159,003.10, 219,424.44 and 87,381.59 is: 120,586.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,003.10 : 219,424.44 = 87,381.59 : x
  2. Step 2: Convert to fraction form
    159,003.10/219,424.44 = 87,381.59/x
  3. Step 3: Cross multiply
    159,003.10x = 219,424.44 × 87,381.59
  4. Step 4: Simplify right side
    159,003.10x = 19,173,655,682.62
  5. Step 5: Solve for x
    x = 19,173,655,682.62/159,003.10
  6. Step 6: Final answer
    x = 120,586.68

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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.