Home / 158,123.14-218,208.13-86,502.33

Finding the Fourth Proportional to 158,123.14, 218,208.13 and 86,502.33

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Solution

The fourth proportional to 158,123.14, 218,208.13 and 86,502.33 is: 119,372.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,123.14 : 218,208.13 = 86,502.33 : x
  2. Step 2: Convert to fraction form
    158,123.14/218,208.13 = 86,502.33/x
  3. Step 3: Cross multiply
    158,123.14x = 218,208.13 × 86,502.33
  4. Step 4: Simplify right side
    158,123.14x = 18,875,511,453.69
  5. Step 5: Solve for x
    x = 18,875,511,453.69/158,123.14
  6. Step 6: Final answer
    x = 119,372.23

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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.