Home / 158,020.27-218,082.78-86,410.80

Finding the Fourth Proportional to 158,020.27, 218,082.78 and 86,410.80

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Solution

The fourth proportional to 158,020.27, 218,082.78 and 86,410.80 is: 119,255.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,020.27 : 218,082.78 = 86,410.80 : x
  2. Step 2: Convert to fraction form
    158,020.27/218,082.78 = 86,410.80/x
  3. Step 3: Cross multiply
    158,020.27x = 218,082.78 × 86,410.80
  4. Step 4: Simplify right side
    158,020.27x = 18,844,707,486.02
  5. Step 5: Solve for x
    x = 18,844,707,486.02/158,020.27
  6. Step 6: Final answer
    x = 119,255.00

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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.