Home / 115,289.84-159,072.89-69,966.81

Finding the Fourth Proportional to 115,289.84, 159,072.89 and 69,966.81

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Solution

The fourth proportional to 115,289.84, 159,072.89 and 69,966.81 is: 96,537.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,289.84 : 159,072.89 = 69,966.81 : x
  2. Step 2: Convert to fraction form
    115,289.84/159,072.89 = 69,966.81/x
  3. Step 3: Cross multiply
    115,289.84x = 159,072.89 × 69,966.81
  4. Step 4: Simplify right side
    115,289.84x = 11,129,822,320.95
  5. Step 5: Solve for x
    x = 11,129,822,320.95/115,289.84
  6. Step 6: Final answer
    x = 96,537.76

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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.