Home / 121,090.80-181,637.23-42,204.90

Finding the Fourth Proportional to 121,090.80, 181,637.23 and 42,204.90

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Solution

The fourth proportional to 121,090.80, 181,637.23 and 42,204.90 is: 63,307.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,090.80 : 181,637.23 = 42,204.90 : x
  2. Step 2: Convert to fraction form
    121,090.80/181,637.23 = 42,204.90/x
  3. Step 3: Cross multiply
    121,090.80x = 181,637.23 × 42,204.90
  4. Step 4: Simplify right side
    121,090.80x = 7,665,981,128.43
  5. Step 5: Solve for x
    x = 7,665,981,128.43/121,090.80
  6. Step 6: Final answer
    x = 63,307.71

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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.