Home / 117,681.28-162,399.70-63,966.13

Finding the Fourth Proportional to 117,681.28, 162,399.70 and 63,966.13

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Solution

The fourth proportional to 117,681.28, 162,399.70 and 63,966.13 is: 88,273.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,681.28 : 162,399.70 = 63,966.13 : x
  2. Step 2: Convert to fraction form
    117,681.28/162,399.70 = 63,966.13/x
  3. Step 3: Cross multiply
    117,681.28x = 162,399.70 × 63,966.13
  4. Step 4: Simplify right side
    117,681.28x = 10,388,079,996.12
  5. Step 5: Solve for x
    x = 10,388,079,996.12/117,681.28
  6. Step 6: Final answer
    x = 88,273.00

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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.