Home / 126,240.89-174,220.97-72,547.31

Finding the Fourth Proportional to 126,240.89, 174,220.97 and 72,547.31

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Solution

The fourth proportional to 126,240.89, 174,220.97 and 72,547.31 is: 100,120.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,240.89 : 174,220.97 = 72,547.31 : x
  2. Step 2: Convert to fraction form
    126,240.89/174,220.97 = 72,547.31/x
  3. Step 3: Cross multiply
    126,240.89x = 174,220.97 × 72,547.31
  4. Step 4: Simplify right side
    126,240.89x = 12,639,262,356.35
  5. Step 5: Solve for x
    x = 12,639,262,356.35/126,240.89
  6. Step 6: Final answer
    x = 100,120.19

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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.