Home / 219,862.20-329,902.65-86,746.80

Finding the Fourth Proportional to 219,862.20, 329,902.65 and 86,746.80

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Solution

The fourth proportional to 219,862.20, 329,902.65 and 86,746.80 is: 130,163.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,862.20 : 329,902.65 = 86,746.80 : x
  2. Step 2: Convert to fraction form
    219,862.20/329,902.65 = 86,746.80/x
  3. Step 3: Cross multiply
    219,862.20x = 329,902.65 × 86,746.80
  4. Step 4: Simplify right side
    219,862.20x = 28,617,999,199.02
  5. Step 5: Solve for x
    x = 28,617,999,199.02/219,862.20
  6. Step 6: Final answer
    x = 130,163.34

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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.