Home / 187,611.16-258,928.41-111,124.21

Finding the Fourth Proportional to 187,611.16, 258,928.41 and 111,124.21

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Solution

The fourth proportional to 187,611.16, 258,928.41 and 111,124.21 is: 153,366.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,611.16 : 258,928.41 = 111,124.21 : x
  2. Step 2: Convert to fraction form
    187,611.16/258,928.41 = 111,124.21/x
  3. Step 3: Cross multiply
    187,611.16x = 258,928.41 × 111,124.21
  4. Step 4: Simplify right side
    187,611.16x = 28,773,215,007.81
  5. Step 5: Solve for x
    x = 28,773,215,007.81/187,611.16
  6. Step 6: Final answer
    x = 153,366.22

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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.