Home / 101,743.68-140,399.40-56,419.98

Finding the Fourth Proportional to 101,743.68, 140,399.40 and 56,419.98

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Solution

The fourth proportional to 101,743.68, 140,399.40 and 56,419.98 is: 77,855.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,743.68 : 140,399.40 = 56,419.98 : x
  2. Step 2: Convert to fraction form
    101,743.68/140,399.40 = 56,419.98/x
  3. Step 3: Cross multiply
    101,743.68x = 140,399.40 × 56,419.98
  4. Step 4: Simplify right side
    101,743.68x = 7,921,331,340.01
  5. Step 5: Solve for x
    x = 7,921,331,340.01/101,743.68
  6. Step 6: Final answer
    x = 77,855.76

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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.