Home / 217,869.20-326,803.80-70,125.20

Finding the Fourth Proportional to 217,869.20, 326,803.80 and 70,125.20

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Solution

The fourth proportional to 217,869.20, 326,803.80 and 70,125.20 is: 105,187.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,869.20 : 326,803.80 = 70,125.20 : x
  2. Step 2: Convert to fraction form
    217,869.20/326,803.80 = 70,125.20/x
  3. Step 3: Cross multiply
    217,869.20x = 326,803.80 × 70,125.20
  4. Step 4: Simplify right side
    217,869.20x = 22,917,181,835.76
  5. Step 5: Solve for x
    x = 22,917,181,835.76/217,869.20
  6. Step 6: Final answer
    x = 105,187.80

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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.