Home / 158,193.69-218,306.79-86,574.30

Finding the Fourth Proportional to 158,193.69, 218,306.79 and 86,574.30

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Solution

The fourth proportional to 158,193.69, 218,306.79 and 86,574.30 is: 119,472.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,193.69 : 218,306.79 = 86,574.30 : x
  2. Step 2: Convert to fraction form
    158,193.69/218,306.79 = 86,574.30/x
  3. Step 3: Cross multiply
    158,193.69x = 218,306.79 × 86,574.30
  4. Step 4: Simplify right side
    158,193.69x = 18,899,757,529.50
  5. Step 5: Solve for x
    x = 18,899,757,529.50/158,193.69
  6. Step 6: Final answer
    x = 119,472.26

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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.