Home / 187,865.61-259,265.16-111,429.96

Finding the Fourth Proportional to 187,865.61, 259,265.16 and 111,429.96

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Solution

The fourth proportional to 187,865.61, 259,265.16 and 111,429.96 is: 153,779.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,865.61 : 259,265.16 = 111,429.96 : x
  2. Step 2: Convert to fraction form
    187,865.61/259,265.16 = 111,429.96/x
  3. Step 3: Cross multiply
    187,865.61x = 259,265.16 × 111,429.96
  4. Step 4: Simplify right side
    187,865.61x = 28,889,906,408.19
  5. Step 5: Solve for x
    x = 28,889,906,408.19/187,865.61
  6. Step 6: Final answer
    x = 153,779.64

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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.