Home / 222,985.11-307,734.63-126,189.03

Finding the Fourth Proportional to 222,985.11, 307,734.63 and 126,189.03

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Solution

The fourth proportional to 222,985.11, 307,734.63 and 126,189.03 is: 174,149.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,985.11 : 307,734.63 = 126,189.03 : x
  2. Step 2: Convert to fraction form
    222,985.11/307,734.63 = 126,189.03/x
  3. Step 3: Cross multiply
    222,985.11x = 307,734.63 × 126,189.03
  4. Step 4: Simplify right side
    222,985.11x = 38,832,734,457.11
  5. Step 5: Solve for x
    x = 38,832,734,457.11/222,985.11
  6. Step 6: Final answer
    x = 174,149.45

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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.