Home / 159,688.48-220,371.69-88,071.25

Finding the Fourth Proportional to 159,688.48, 220,371.69 and 88,071.25

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Solution

The fourth proportional to 159,688.48, 220,371.69 and 88,071.25 is: 121,539.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,688.48 : 220,371.69 = 88,071.25 : x
  2. Step 2: Convert to fraction form
    159,688.48/220,371.69 = 88,071.25/x
  3. Step 3: Cross multiply
    159,688.48x = 220,371.69 × 88,071.25
  4. Step 4: Simplify right side
    159,688.48x = 19,408,410,202.91
  5. Step 5: Solve for x
    x = 19,408,410,202.91/159,688.48
  6. Step 6: Final answer
    x = 121,539.20

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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.