Home / 219,670.12-329,387.10-69,869.80

Finding the Fourth Proportional to 219,670.12, 329,387.10 and 69,869.80

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Solution

The fourth proportional to 219,670.12, 329,387.10 and 69,869.80 is: 104,767.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,670.12 : 329,387.10 = 69,869.80 : x
  2. Step 2: Convert to fraction form
    219,670.12/329,387.10 = 69,869.80/x
  3. Step 3: Cross multiply
    219,670.12x = 329,387.10 × 69,869.80
  4. Step 4: Simplify right side
    219,670.12x = 23,014,210,799.58
  5. Step 5: Solve for x
    x = 23,014,210,799.58/219,670.12
  6. Step 6: Final answer
    x = 104,767.14

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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.