Home / 187,618.41-258,938.55-111,131.55

Finding the Fourth Proportional to 187,618.41, 258,938.55 and 111,131.55

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Solution

The fourth proportional to 187,618.41, 258,938.55 and 111,131.55 is: 153,376.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,618.41 : 258,938.55 = 111,131.55 : x
  2. Step 2: Convert to fraction form
    187,618.41/258,938.55 = 111,131.55/x
  3. Step 3: Cross multiply
    187,618.41x = 258,938.55 × 111,131.55
  4. Step 4: Simplify right side
    187,618.41x = 28,776,242,416.25
  5. Step 5: Solve for x
    x = 28,776,242,416.25/187,618.41
  6. Step 6: Final answer
    x = 153,376.43

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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.