Home / 126,406.13-189,623.78-42,177.47

Finding the Fourth Proportional to 126,406.13, 189,623.78 and 42,177.47

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Solution

The fourth proportional to 126,406.13, 189,623.78 and 42,177.47 is: 63,271.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,406.13 : 189,623.78 = 42,177.47 : x
  2. Step 2: Convert to fraction form
    126,406.13/189,623.78 = 42,177.47/x
  3. Step 3: Cross multiply
    126,406.13x = 189,623.78 × 42,177.47
  4. Step 4: Simplify right side
    126,406.13x = 7,997,851,358.03
  5. Step 5: Solve for x
    x = 7,997,851,358.03/126,406.13
  6. Step 6: Final answer
    x = 63,271.07

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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.