Home / 158,017.12-218,062.12-86,396.38

Finding the Fourth Proportional to 158,017.12, 218,062.12 and 86,396.38

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Solution

The fourth proportional to 158,017.12, 218,062.12 and 86,396.38 is: 119,226.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,017.12 : 218,062.12 = 86,396.38 : x
  2. Step 2: Convert to fraction form
    158,017.12/218,062.12 = 86,396.38/x
  3. Step 3: Cross multiply
    158,017.12x = 218,062.12 × 86,396.38
  4. Step 4: Simplify right side
    158,017.12x = 18,839,777,783.13
  5. Step 5: Solve for x
    x = 18,839,777,783.13/158,017.12
  6. Step 6: Final answer
    x = 119,226.18

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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.