Home / 175,438.72-242,090.73-103,806.28

Finding the Fourth Proportional to 175,438.72, 242,090.73 and 103,806.28

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Solution

The fourth proportional to 175,438.72, 242,090.73 and 103,806.28 is: 143,243.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,438.72 : 242,090.73 = 103,806.28 : x
  2. Step 2: Convert to fraction form
    175,438.72/242,090.73 = 103,806.28/x
  3. Step 3: Cross multiply
    175,438.72x = 242,090.73 × 103,806.28
  4. Step 4: Simplify right side
    175,438.72x = 25,130,538,103.78
  5. Step 5: Solve for x
    x = 25,130,538,103.78/175,438.72
  6. Step 6: Final answer
    x = 143,243.97

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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.