Home / 159,602.06-220,252.38-87,984.66

Finding the Fourth Proportional to 159,602.06, 220,252.38 and 87,984.66

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Solution

The fourth proportional to 159,602.06, 220,252.38 and 87,984.66 is: 121,419.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,602.06 : 220,252.38 = 87,984.66 : x
  2. Step 2: Convert to fraction form
    159,602.06/220,252.38 = 87,984.66/x
  3. Step 3: Cross multiply
    159,602.06x = 220,252.38 × 87,984.66
  4. Step 4: Simplify right side
    159,602.06x = 19,378,830,768.49
  5. Step 5: Solve for x
    x = 19,378,830,768.49/159,602.06
  6. Step 6: Final answer
    x = 121,419.68

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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.