Home / 158,197.58-218,309.74-86,576.16

Finding the Fourth Proportional to 158,197.58, 218,309.74 and 86,576.16

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Solution

The fourth proportional to 158,197.58, 218,309.74 and 86,576.16 is: 119,473.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,197.58 : 218,309.74 = 86,576.16 : x
  2. Step 2: Convert to fraction form
    158,197.58/218,309.74 = 86,576.16/x
  3. Step 3: Cross multiply
    158,197.58x = 218,309.74 × 86,576.16
  4. Step 4: Simplify right side
    158,197.58x = 18,900,418,979.80
  5. Step 5: Solve for x
    x = 18,900,418,979.80/158,197.58
  6. Step 6: Final answer
    x = 119,473.50

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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.