Home / 158,240.16-218,371.26-86,619.56

Finding the Fourth Proportional to 158,240.16, 218,371.26 and 86,619.56

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Solution

The fourth proportional to 158,240.16, 218,371.26 and 86,619.56 is: 119,534.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,240.16 : 218,371.26 = 86,619.56 : x
  2. Step 2: Convert to fraction form
    158,240.16/218,371.26 = 86,619.56/x
  3. Step 3: Cross multiply
    158,240.16x = 218,371.26 × 86,619.56
  4. Step 4: Simplify right side
    158,240.16x = 18,915,222,457.85
  5. Step 5: Solve for x
    x = 18,915,222,457.85/158,240.16
  6. Step 6: Final answer
    x = 119,534.90

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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.