Home / 158,335.38-218,502.83-86,715.58

Finding the Fourth Proportional to 158,335.38, 218,502.83 and 86,715.58

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Solution

The fourth proportional to 158,335.38, 218,502.83 and 86,715.58 is: 119,667.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,335.38 : 218,502.83 = 86,715.58 : x
  2. Step 2: Convert to fraction form
    158,335.38/218,502.83 = 86,715.58/x
  3. Step 3: Cross multiply
    158,335.38x = 218,502.83 × 86,715.58
  4. Step 4: Simplify right side
    158,335.38x = 18,947,598,427.68
  5. Step 5: Solve for x
    x = 18,947,598,427.68/158,335.38
  6. Step 6: Final answer
    x = 119,667.49

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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.