Home / 159,868.37-220,602.61-88,243.76

Finding the Fourth Proportional to 159,868.37, 220,602.61 and 88,243.76

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Solution

The fourth proportional to 159,868.37, 220,602.61 and 88,243.76 is: 121,767.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,868.37 : 220,602.61 = 88,243.76 : x
  2. Step 2: Convert to fraction form
    159,868.37/220,602.61 = 88,243.76/x
  3. Step 3: Cross multiply
    159,868.37x = 220,602.61 × 88,243.76
  4. Step 4: Simplify right side
    159,868.37x = 19,466,803,772.21
  5. Step 5: Solve for x
    x = 19,466,803,772.21/159,868.37
  6. Step 6: Final answer
    x = 121,767.70

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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.