Home / 230,838.12-318,572.67-128,883.66

Finding the Fourth Proportional to 230,838.12, 318,572.67 and 128,883.66

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Solution

The fourth proportional to 230,838.12, 318,572.67 and 128,883.66 is: 177,868.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,838.12 : 318,572.67 = 128,883.66 : x
  2. Step 2: Convert to fraction form
    230,838.12/318,572.67 = 128,883.66/x
  3. Step 3: Cross multiply
    230,838.12x = 318,572.67 × 128,883.66
  4. Step 4: Simplify right side
    230,838.12x = 41,058,811,685.57
  5. Step 5: Solve for x
    x = 41,058,811,685.57/230,838.12
  6. Step 6: Final answer
    x = 177,868.42

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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.