Home / 126,351.03-189,515.59-51,479.08

Finding the Fourth Proportional to 126,351.03, 189,515.59 and 51,479.08

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Solution

The fourth proportional to 126,351.03, 189,515.59 and 51,479.08 is: 77,214.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,351.03 : 189,515.59 = 51,479.08 : x
  2. Step 2: Convert to fraction form
    126,351.03/189,515.59 = 51,479.08/x
  3. Step 3: Cross multiply
    126,351.03x = 189,515.59 × 51,479.08
  4. Step 4: Simplify right side
    126,351.03x = 9,756,088,218.86
  5. Step 5: Solve for x
    x = 9,756,088,218.86/126,351.03
  6. Step 6: Final answer
    x = 77,214.16

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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.