Home / 158,247.72-218,384.40-86,626.50

Finding the Fourth Proportional to 158,247.72, 218,384.40 and 86,626.50

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Solution

The fourth proportional to 158,247.72, 218,384.40 and 86,626.50 is: 119,545.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,247.72 : 218,384.40 = 86,626.50 : x
  2. Step 2: Convert to fraction form
    158,247.72/218,384.40 = 86,626.50/x
  3. Step 3: Cross multiply
    158,247.72x = 218,384.40 × 86,626.50
  4. Step 4: Simplify right side
    158,247.72x = 18,917,876,226.60
  5. Step 5: Solve for x
    x = 18,917,876,226.60/158,247.72
  6. Step 6: Final answer
    x = 119,545.96

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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.