Home / 101,770.02-140,442.66-57,058.02

Finding the Fourth Proportional to 101,770.02, 140,442.66 and 57,058.02

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Solution

The fourth proportional to 101,770.02, 140,442.66 and 57,058.02 is: 78,740.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,770.02 : 140,442.66 = 57,058.02 : x
  2. Step 2: Convert to fraction form
    101,770.02/140,442.66 = 57,058.02/x
  3. Step 3: Cross multiply
    101,770.02x = 140,442.66 × 57,058.02
  4. Step 4: Simplify right side
    101,770.02x = 8,013,380,103.13
  5. Step 5: Solve for x
    x = 8,013,380,103.13/101,770.02
  6. Step 6: Final answer
    x = 78,740.09

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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.