Home / 117,538.29-162,287.28-72,277.11

Finding the Fourth Proportional to 117,538.29, 162,287.28 and 72,277.11

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Solution

The fourth proportional to 117,538.29, 162,287.28 and 72,277.11 is: 99,794.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,538.29 : 162,287.28 = 72,277.11 : x
  2. Step 2: Convert to fraction form
    117,538.29/162,287.28 = 72,277.11/x
  3. Step 3: Cross multiply
    117,538.29x = 162,287.28 × 72,277.11
  4. Step 4: Simplify right side
    117,538.29x = 11,729,655,588.16
  5. Step 5: Solve for x
    x = 11,729,655,588.16/117,538.29
  6. Step 6: Final answer
    x = 99,794.34

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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.