Home / 107,755.06-148,625.51-91,510.21

Finding the Fourth Proportional to 107,755.06, 148,625.51 and 91,510.21

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Solution

The fourth proportional to 107,755.06, 148,625.51 and 91,510.21 is: 126,219.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,755.06 : 148,625.51 = 91,510.21 : x
  2. Step 2: Convert to fraction form
    107,755.06/148,625.51 = 91,510.21/x
  3. Step 3: Cross multiply
    107,755.06x = 148,625.51 × 91,510.21
  4. Step 4: Simplify right side
    107,755.06x = 13,600,751,631.46
  5. Step 5: Solve for x
    x = 13,600,751,631.46/107,755.06
  6. Step 6: Final answer
    x = 126,219.15

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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.