Home / 101,764.23-140,435.43-56,439.69

Finding the Fourth Proportional to 101,764.23, 140,435.43 and 56,439.69

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Solution

The fourth proportional to 101,764.23, 140,435.43 and 56,439.69 is: 77,887.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,764.23 : 140,435.43 = 56,439.69 : x
  2. Step 2: Convert to fraction form
    101,764.23/140,435.43 = 56,439.69/x
  3. Step 3: Cross multiply
    101,764.23x = 140,435.43 × 56,439.69
  4. Step 4: Simplify right side
    101,764.23x = 7,926,132,134.22
  5. Step 5: Solve for x
    x = 7,926,132,134.22/101,764.23
  6. Step 6: Final answer
    x = 77,887.21

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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.