Home / 158,229.16-218,356.08-86,608.54

Finding the Fourth Proportional to 158,229.16, 218,356.08 and 86,608.54

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Solution

The fourth proportional to 158,229.16, 218,356.08 and 86,608.54 is: 119,519.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,229.16 : 218,356.08 = 86,608.54 : x
  2. Step 2: Convert to fraction form
    158,229.16/218,356.08 = 86,608.54/x
  3. Step 3: Cross multiply
    158,229.16x = 218,356.08 × 86,608.54
  4. Step 4: Simplify right side
    158,229.16x = 18,911,501,288.92
  5. Step 5: Solve for x
    x = 18,911,501,288.92/158,229.16
  6. Step 6: Final answer
    x = 119,519.70

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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.