Home / 158,222.17-218,346.22-86,601.56

Finding the Fourth Proportional to 158,222.17, 218,346.22 and 86,601.56

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Solution

The fourth proportional to 158,222.17, 218,346.22 and 86,601.56 is: 119,509.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,222.17 : 218,346.22 = 86,601.56 : x
  2. Step 2: Convert to fraction form
    158,222.17/218,346.22 = 86,601.56/x
  3. Step 3: Cross multiply
    158,222.17x = 218,346.22 × 86,601.56
  4. Step 4: Simplify right side
    158,222.17x = 18,909,123,817.97
  5. Step 5: Solve for x
    x = 18,909,123,817.97/158,222.17
  6. Step 6: Final answer
    x = 119,509.95

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1.5x scale

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.