Home / 158,424.93-218,622.96-86,803.38

Finding the Fourth Proportional to 158,424.93, 218,622.96 and 86,803.38

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Solution

The fourth proportional to 158,424.93, 218,622.96 and 86,803.38 is: 119,786.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,424.93 : 218,622.96 = 86,803.38 : x
  2. Step 2: Convert to fraction form
    158,424.93/218,622.96 = 86,803.38/x
  3. Step 3: Cross multiply
    158,424.93x = 218,622.96 × 86,803.38
  4. Step 4: Simplify right side
    158,424.93x = 18,977,211,873.60
  5. Step 5: Solve for x
    x = 18,977,211,873.60/158,424.93
  6. Step 6: Final answer
    x = 119,786.78

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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.