Home / 143,725.09-215,424.14-87,441.13

Finding the Fourth Proportional to 143,725.09, 215,424.14 and 87,441.13

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Solution

The fourth proportional to 143,725.09, 215,424.14 and 87,441.13 is: 131,062.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,725.09 : 215,424.14 = 87,441.13 : x
  2. Step 2: Convert to fraction form
    143,725.09/215,424.14 = 87,441.13/x
  3. Step 3: Cross multiply
    143,725.09x = 215,424.14 × 87,441.13
  4. Step 4: Simplify right side
    143,725.09x = 18,836,928,716.55
  5. Step 5: Solve for x
    x = 18,836,928,716.55/143,725.09
  6. Step 6: Final answer
    x = 131,062.22

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1.5x scale

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.