Home / 121,767.10-168,090.33-74,035.69

Finding the Fourth Proportional to 121,767.10, 168,090.33 and 74,035.69

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Solution

The fourth proportional to 121,767.10, 168,090.33 and 74,035.69 is: 102,200.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,767.10 : 168,090.33 = 74,035.69 : x
  2. Step 2: Convert to fraction form
    121,767.10/168,090.33 = 74,035.69/x
  3. Step 3: Cross multiply
    121,767.10x = 168,090.33 × 74,035.69
  4. Step 4: Simplify right side
    121,767.10x = 12,444,683,563.88
  5. Step 5: Solve for x
    x = 12,444,683,563.88/121,767.10
  6. Step 6: Final answer
    x = 102,200.71

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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.