Home / 238,861.68-329,643.06-136,918.71

Finding the Fourth Proportional to 238,861.68, 329,643.06 and 136,918.71

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Solution

The fourth proportional to 238,861.68, 329,643.06 and 136,918.71 is: 188,955.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,861.68 : 329,643.06 = 136,918.71 : x
  2. Step 2: Convert to fraction form
    238,861.68/329,643.06 = 136,918.71/x
  3. Step 3: Cross multiply
    238,861.68x = 329,643.06 × 136,918.71
  4. Step 4: Simplify right side
    238,861.68x = 45,134,302,535.65
  5. Step 5: Solve for x
    x = 45,134,302,535.65/238,861.68
  6. Step 6: Final answer
    x = 188,955.81

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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.