Home / 220,117.95-330,160.77-70,318.02

Finding the Fourth Proportional to 220,117.95, 330,160.77 and 70,318.02

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Solution

The fourth proportional to 220,117.95, 330,160.77 and 70,318.02 is: 105,471.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,117.95 : 330,160.77 = 70,318.02 : x
  2. Step 2: Convert to fraction form
    220,117.95/330,160.77 = 70,318.02/x
  3. Step 3: Cross multiply
    220,117.95x = 330,160.77 × 70,318.02
  4. Step 4: Simplify right side
    220,117.95x = 23,216,251,628.08
  5. Step 5: Solve for x
    x = 23,216,251,628.08/220,117.95
  6. Step 6: Final answer
    x = 105,471.87

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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.