Home / 187,911.42-259,328.37-111,475.77

Finding the Fourth Proportional to 187,911.42, 259,328.37 and 111,475.77

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Solution

The fourth proportional to 187,911.42, 259,328.37 and 111,475.77 is: 153,842.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,911.42 : 259,328.37 = 111,475.77 : x
  2. Step 2: Convert to fraction form
    187,911.42/259,328.37 = 111,475.77/x
  3. Step 3: Cross multiply
    187,911.42x = 259,328.37 × 111,475.77
  4. Step 4: Simplify right side
    187,911.42x = 28,908,829,728.59
  5. Step 5: Solve for x
    x = 28,908,829,728.59/187,911.42
  6. Step 6: Final answer
    x = 153,842.86

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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.