Home / 101,961.45-140,702.22-56,642.58

Finding the Fourth Proportional to 101,961.45, 140,702.22 and 56,642.58

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Solution

The fourth proportional to 101,961.45, 140,702.22 and 56,642.58 is: 78,164.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,961.45 : 140,702.22 = 56,642.58 : x
  2. Step 2: Convert to fraction form
    101,961.45/140,702.22 = 56,642.58/x
  3. Step 3: Cross multiply
    101,961.45x = 140,702.22 × 56,642.58
  4. Step 4: Simplify right side
    101,961.45x = 7,969,736,752.53
  5. Step 5: Solve for x
    x = 7,969,736,752.53/101,961.45
  6. Step 6: Final answer
    x = 78,164.22

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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.