Home / 213,871.12-294,940.18-159,543.20

Finding the Fourth Proportional to 213,871.12, 294,940.18 and 159,543.20

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Solution

The fourth proportional to 213,871.12, 294,940.18 and 159,543.20 is: 220,018.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,871.12 : 294,940.18 = 159,543.20 : x
  2. Step 2: Convert to fraction form
    213,871.12/294,940.18 = 159,543.20/x
  3. Step 3: Cross multiply
    213,871.12x = 294,940.18 × 159,543.20
  4. Step 4: Simplify right side
    213,871.12x = 47,055,700,125.78
  5. Step 5: Solve for x
    x = 47,055,700,125.78/213,871.12
  6. Step 6: Final answer
    x = 220,018.95

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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.