Home / 161,634.33-223,039.40-90,021.01

Finding the Fourth Proportional to 161,634.33, 223,039.40 and 90,021.01

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Solution

The fourth proportional to 161,634.33, 223,039.40 and 90,021.01 is: 124,220.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,634.33 : 223,039.40 = 90,021.01 : x
  2. Step 2: Convert to fraction form
    161,634.33/223,039.40 = 90,021.01/x
  3. Step 3: Cross multiply
    161,634.33x = 223,039.40 × 90,021.01
  4. Step 4: Simplify right side
    161,634.33x = 20,078,232,057.79
  5. Step 5: Solve for x
    x = 20,078,232,057.79/161,634.33
  6. Step 6: Final answer
    x = 124,220.10

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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.