Home / 101,976.18-140,726.21-56,654.25

Finding the Fourth Proportional to 101,976.18, 140,726.21 and 56,654.25

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Solution

The fourth proportional to 101,976.18, 140,726.21 and 56,654.25 is: 78,182.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,976.18 : 140,726.21 = 56,654.25 : x
  2. Step 2: Convert to fraction form
    101,976.18/140,726.21 = 56,654.25/x
  3. Step 3: Cross multiply
    101,976.18x = 140,726.21 × 56,654.25
  4. Step 4: Simplify right side
    101,976.18x = 7,972,737,599.62
  5. Step 5: Solve for x
    x = 7,972,737,599.62/101,976.18
  6. Step 6: Final answer
    x = 78,182.35

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1.5x scale

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.