Home / 218,064.29-326,962.44-84,789.18

Finding the Fourth Proportional to 218,064.29, 326,962.44 and 84,789.18

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Solution

The fourth proportional to 218,064.29, 326,962.44 and 84,789.18 is: 127,131.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,064.29 : 326,962.44 = 84,789.18 : x
  2. Step 2: Convert to fraction form
    218,064.29/326,962.44 = 84,789.18/x
  3. Step 3: Cross multiply
    218,064.29x = 326,962.44 × 84,789.18
  4. Step 4: Simplify right side
    218,064.29x = 27,722,877,178.40
  5. Step 5: Solve for x
    x = 27,722,877,178.40/218,064.29
  6. Step 6: Final answer
    x = 127,131.67

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.