Home / 107,009.09-161,249.78-88,701.16

Finding the Fourth Proportional to 107,009.09, 161,249.78 and 88,701.16

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Solution

The fourth proportional to 107,009.09, 161,249.78 and 88,701.16 is: 133,661.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,009.09 : 161,249.78 = 88,701.16 : x
  2. Step 2: Convert to fraction form
    107,009.09/161,249.78 = 88,701.16/x
  3. Step 3: Cross multiply
    107,009.09x = 161,249.78 × 88,701.16
  4. Step 4: Simplify right side
    107,009.09x = 14,303,042,535.74
  5. Step 5: Solve for x
    x = 14,303,042,535.74/107,009.09
  6. Step 6: Final answer
    x = 133,661.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.