Home / 120,028.01-165,641.94-66,316.41

Finding the Fourth Proportional to 120,028.01, 165,641.94 and 66,316.41

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Solution

The fourth proportional to 120,028.01, 165,641.94 and 66,316.41 is: 91,518.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,028.01 : 165,641.94 = 66,316.41 : x
  2. Step 2: Convert to fraction form
    120,028.01/165,641.94 = 66,316.41/x
  3. Step 3: Cross multiply
    120,028.01x = 165,641.94 × 66,316.41
  4. Step 4: Simplify right side
    120,028.01x = 10,984,778,806.24
  5. Step 5: Solve for x
    x = 10,984,778,806.24/120,028.01
  6. Step 6: Final answer
    x = 91,518.47

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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.