Home / 133,041.10-199,561.65-126,480.10

Finding the Fourth Proportional to 133,041.10, 199,561.65 and 126,480.10

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Solution

The fourth proportional to 133,041.10, 199,561.65 and 126,480.10 is: 189,720.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,041.10 : 199,561.65 = 126,480.10 : x
  2. Step 2: Convert to fraction form
    133,041.10/199,561.65 = 126,480.10/x
  3. Step 3: Cross multiply
    133,041.10x = 199,561.65 × 126,480.10
  4. Step 4: Simplify right side
    133,041.10x = 25,240,577,448.17
  5. Step 5: Solve for x
    x = 25,240,577,448.17/133,041.10
  6. Step 6: Final answer
    x = 189,720.15

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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.