Home / 100,020.67-150,031.19-40,856.35

Finding the Fourth Proportional to 100,020.67, 150,031.19 and 40,856.35

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Solution

The fourth proportional to 100,020.67, 150,031.19 and 40,856.35 is: 61,284.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,020.67 : 150,031.19 = 40,856.35 : x
  2. Step 2: Convert to fraction form
    100,020.67/150,031.19 = 40,856.35/x
  3. Step 3: Cross multiply
    100,020.67x = 150,031.19 × 40,856.35
  4. Step 4: Simplify right side
    100,020.67x = 6,129,726,809.56
  5. Step 5: Solve for x
    x = 6,129,726,809.56/100,020.67
  6. Step 6: Final answer
    x = 61,284.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.