Home / 115,269.76-159,071.96-64,282.55

Finding the Fourth Proportional to 115,269.76, 159,071.96 and 64,282.55

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Solution

The fourth proportional to 115,269.76, 159,071.96 and 64,282.55 is: 88,709.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,269.76 : 159,071.96 = 64,282.55 : x
  2. Step 2: Convert to fraction form
    115,269.76/159,071.96 = 64,282.55/x
  3. Step 3: Cross multiply
    115,269.76x = 159,071.96 × 64,282.55
  4. Step 4: Simplify right side
    115,269.76x = 10,225,551,123.13
  5. Step 5: Solve for x
    x = 10,225,551,123.13/115,269.76
  6. Step 6: Final answer
    x = 88,709.75

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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.