Home / 217,065.13-299,547.26-126,435.85

Finding the Fourth Proportional to 217,065.13, 299,547.26 and 126,435.85

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Solution

The fourth proportional to 217,065.13, 299,547.26 and 126,435.85 is: 174,479.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,065.13 : 299,547.26 = 126,435.85 : x
  2. Step 2: Convert to fraction form
    217,065.13/299,547.26 = 126,435.85/x
  3. Step 3: Cross multiply
    217,065.13x = 299,547.26 × 126,435.85
  4. Step 4: Simplify right side
    217,065.13x = 37,873,511,801.09
  5. Step 5: Solve for x
    x = 37,873,511,801.09/217,065.13
  6. Step 6: Final answer
    x = 174,479.94

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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.