Home / 101,747.18-140,415.64-56,422.12

Finding the Fourth Proportional to 101,747.18, 140,415.64 and 56,422.12

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Solution

The fourth proportional to 101,747.18, 140,415.64 and 56,422.12 is: 77,865.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,747.18 : 140,415.64 = 56,422.12 : x
  2. Step 2: Convert to fraction form
    101,747.18/140,415.64 = 56,422.12/x
  3. Step 3: Cross multiply
    101,747.18x = 140,415.64 × 56,422.12
  4. Step 4: Simplify right side
    101,747.18x = 7,922,548,089.96
  5. Step 5: Solve for x
    x = 7,922,548,089.96/101,747.18
  6. Step 6: Final answer
    x = 77,865.04

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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.