Home / 281,957.29-389,065.07-161,106.40

Finding the Fourth Proportional to 281,957.29, 389,065.07 and 161,106.40

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Solution

The fourth proportional to 281,957.29, 389,065.07 and 161,106.40 is: 222,306.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,957.29 : 389,065.07 = 161,106.40 : x
  2. Step 2: Convert to fraction form
    281,957.29/389,065.07 = 161,106.40/x
  3. Step 3: Cross multiply
    281,957.29x = 389,065.07 × 161,106.40
  4. Step 4: Simplify right side
    281,957.29x = 62,680,871,987.92
  5. Step 5: Solve for x
    x = 62,680,871,987.92/281,957.29
  6. Step 6: Final answer
    x = 222,306.26

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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.