Home / 100,316.77-138,436.26-54,993.93

Finding the Fourth Proportional to 100,316.77, 138,436.26 and 54,993.93

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Solution

The fourth proportional to 100,316.77, 138,436.26 and 54,993.93 is: 75,891.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,316.77 : 138,436.26 = 54,993.93 : x
  2. Step 2: Convert to fraction form
    100,316.77/138,436.26 = 54,993.93/x
  3. Step 3: Cross multiply
    100,316.77x = 138,436.26 × 54,993.93
  4. Step 4: Simplify right side
    100,316.77x = 7,613,153,266.54
  5. Step 5: Solve for x
    x = 7,613,153,266.54/100,316.77
  6. Step 6: Final answer
    x = 75,891.13

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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.