Home / 219,325.10-329,074.05-86,182.70

Finding the Fourth Proportional to 219,325.10, 329,074.05 and 86,182.70

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Solution

The fourth proportional to 219,325.10, 329,074.05 and 86,182.70 is: 129,308.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,325.10 : 329,074.05 = 86,182.70 : x
  2. Step 2: Convert to fraction form
    219,325.10/329,074.05 = 86,182.70/x
  3. Step 3: Cross multiply
    219,325.10x = 329,074.05 × 86,182.70
  4. Step 4: Simplify right side
    219,325.10x = 28,360,490,128.94
  5. Step 5: Solve for x
    x = 28,360,490,128.94/219,325.10
  6. Step 6: Final answer
    x = 129,308.00

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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.