Home / 100,669.56-138,924.27-55,352.22

Finding the Fourth Proportional to 100,669.56, 138,924.27 and 55,352.22

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Solution

The fourth proportional to 100,669.56, 138,924.27 and 55,352.22 is: 76,386.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,669.56 : 138,924.27 = 55,352.22 : x
  2. Step 2: Convert to fraction form
    100,669.56/138,924.27 = 55,352.22/x
  3. Step 3: Cross multiply
    100,669.56x = 138,924.27 × 55,352.22
  4. Step 4: Simplify right side
    100,669.56x = 7,689,766,756.38
  5. Step 5: Solve for x
    x = 7,689,766,756.38/100,669.56
  6. Step 6: Final answer
    x = 76,386.22

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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.