Home / 101,867.93-140,571.09-56,543.75

Finding the Fourth Proportional to 101,867.93, 140,571.09 and 56,543.75

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Solution

The fourth proportional to 101,867.93, 140,571.09 and 56,543.75 is: 78,026.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,867.93 : 140,571.09 = 56,543.75 : x
  2. Step 2: Convert to fraction form
    101,867.93/140,571.09 = 56,543.75/x
  3. Step 3: Cross multiply
    101,867.93x = 140,571.09 × 56,543.75
  4. Step 4: Simplify right side
    101,867.93x = 7,948,415,867.33
  5. Step 5: Solve for x
    x = 7,948,415,867.33/101,867.93
  6. Step 6: Final answer
    x = 78,026.68

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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.