Home / 121,745.72-182,671.38-42,916.28

Finding the Fourth Proportional to 121,745.72, 182,671.38 and 42,916.28

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Solution

The fourth proportional to 121,745.72, 182,671.38 and 42,916.28 is: 64,393.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,745.72 : 182,671.38 = 42,916.28 : x
  2. Step 2: Convert to fraction form
    121,745.72/182,671.38 = 42,916.28/x
  3. Step 3: Cross multiply
    121,745.72x = 182,671.38 × 42,916.28
  4. Step 4: Simplify right side
    121,745.72x = 7,839,576,092.07
  5. Step 5: Solve for x
    x = 7,839,576,092.07/121,745.72
  6. Step 6: Final answer
    x = 64,393.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.