Home / 154,301.43-212,955.66-86,322.18

Finding the Fourth Proportional to 154,301.43, 212,955.66 and 86,322.18

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Solution

The fourth proportional to 154,301.43, 212,955.66 and 86,322.18 is: 119,135.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,301.43 : 212,955.66 = 86,322.18 : x
  2. Step 2: Convert to fraction form
    154,301.43/212,955.66 = 86,322.18/x
  3. Step 3: Cross multiply
    154,301.43x = 212,955.66 × 86,322.18
  4. Step 4: Simplify right side
    154,301.43x = 18,382,796,814.54
  5. Step 5: Solve for x
    x = 18,382,796,814.54/154,301.43
  6. Step 6: Final answer
    x = 119,135.62

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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.