Home / 187,607.16-258,922.89-111,120.21

Finding the Fourth Proportional to 187,607.16, 258,922.89 and 111,120.21

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Solution

The fourth proportional to 187,607.16, 258,922.89 and 111,120.21 is: 153,360.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,607.16 : 258,922.89 = 111,120.21 : x
  2. Step 2: Convert to fraction form
    187,607.16/258,922.89 = 111,120.21/x
  3. Step 3: Cross multiply
    187,607.16x = 258,922.89 × 111,120.21
  4. Step 4: Simplify right side
    187,607.16x = 28,771,565,910.61
  5. Step 5: Solve for x
    x = 28,771,565,910.61/187,607.16
  6. Step 6: Final answer
    x = 153,360.70

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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.