Home / 158,614.20-218,895.62-87,000.89

Finding the Fourth Proportional to 158,614.20, 218,895.62 and 87,000.89

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Solution

The fourth proportional to 158,614.20, 218,895.62 and 87,000.89 is: 120,065.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,614.20 : 218,895.62 = 87,000.89 : x
  2. Step 2: Convert to fraction form
    158,614.20/218,895.62 = 87,000.89/x
  3. Step 3: Cross multiply
    158,614.20x = 218,895.62 × 87,000.89
  4. Step 4: Simplify right side
    158,614.20x = 19,044,112,227.62
  5. Step 5: Solve for x
    x = 19,044,112,227.62/158,614.20
  6. Step 6: Final answer
    x = 120,065.62

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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.