Home / 115,344.81-159,179.64-66,943.08

Finding the Fourth Proportional to 115,344.81, 159,179.64 and 66,943.08

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Solution

The fourth proportional to 115,344.81, 159,179.64 and 66,943.08 is: 92,383.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,344.81 : 159,179.64 = 66,943.08 : x
  2. Step 2: Convert to fraction form
    115,344.81/159,179.64 = 66,943.08/x
  3. Step 3: Cross multiply
    115,344.81x = 159,179.64 × 66,943.08
  4. Step 4: Simplify right side
    115,344.81x = 10,655,975,374.89
  5. Step 5: Solve for x
    x = 10,655,975,374.89/115,344.81
  6. Step 6: Final answer
    x = 92,383.66

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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.