Home / 115,938.81-159,993.45-64,951.02

Finding the Fourth Proportional to 115,938.81, 159,993.45 and 64,951.02

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Solution

The fourth proportional to 115,938.81, 159,993.45 and 64,951.02 is: 89,631.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,938.81 : 159,993.45 = 64,951.02 : x
  2. Step 2: Convert to fraction form
    115,938.81/159,993.45 = 64,951.02/x
  3. Step 3: Cross multiply
    115,938.81x = 159,993.45 × 64,951.02
  4. Step 4: Simplify right side
    115,938.81x = 10,391,737,770.82
  5. Step 5: Solve for x
    x = 10,391,737,770.82/115,938.81
  6. Step 6: Final answer
    x = 89,631.23

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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.