Home / 158,616.20-218,898.38-87,002.89

Finding the Fourth Proportional to 158,616.20, 218,898.38 and 87,002.89

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Solution

The fourth proportional to 158,616.20, 218,898.38 and 87,002.89 is: 120,068.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,616.20 : 218,898.38 = 87,002.89 : x
  2. Step 2: Convert to fraction form
    158,616.20/218,898.38 = 87,002.89/x
  3. Step 3: Cross multiply
    158,616.20x = 218,898.38 × 87,002.89
  4. Step 4: Simplify right side
    158,616.20x = 19,044,791,676.32
  5. Step 5: Solve for x
    x = 19,044,791,676.32/158,616.20
  6. Step 6: Final answer
    x = 120,068.39

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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.