Home / 159,002.60-219,412.96-87,381.08

Finding the Fourth Proportional to 159,002.60, 219,412.96 and 87,381.08

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Solution

The fourth proportional to 159,002.60, 219,412.96 and 87,381.08 is: 120,580.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,002.60 : 219,412.96 = 87,381.08 : x
  2. Step 2: Convert to fraction form
    159,002.60/219,412.96 = 87,381.08/x
  3. Step 3: Cross multiply
    159,002.60x = 219,412.96 × 87,381.08
  4. Step 4: Simplify right side
    159,002.60x = 19,172,541,410.80
  5. Step 5: Solve for x
    x = 19,172,541,410.80/159,002.60
  6. Step 6: Final answer
    x = 120,580.05

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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.