Home / 100,233.70-138,316.69-54,903.79

Finding the Fourth Proportional to 100,233.70, 138,316.69 and 54,903.79

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Solution

The fourth proportional to 100,233.70, 138,316.69 and 54,903.79 is: 75,764.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,233.70 : 138,316.69 = 54,903.79 : x
  2. Step 2: Convert to fraction form
    100,233.70/138,316.69 = 54,903.79/x
  3. Step 3: Cross multiply
    100,233.70x = 138,316.69 × 54,903.79
  4. Step 4: Simplify right side
    100,233.70x = 7,594,110,501.26
  5. Step 5: Solve for x
    x = 7,594,110,501.26/100,233.70
  6. Step 6: Final answer
    x = 75,764.04

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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.