Home / 187,911.76-259,334.58-103,045.36

Finding the Fourth Proportional to 187,911.76, 259,334.58 and 103,045.36

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Solution

The fourth proportional to 187,911.76, 259,334.58 and 103,045.36 is: 142,211.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,911.76 : 259,334.58 = 103,045.36 : x
  2. Step 2: Convert to fraction form
    187,911.76/259,334.58 = 103,045.36/x
  3. Step 3: Cross multiply
    187,911.76x = 259,334.58 × 103,045.36
  4. Step 4: Simplify right side
    187,911.76x = 26,723,225,156.55
  5. Step 5: Solve for x
    x = 26,723,225,156.55/187,911.76
  6. Step 6: Final answer
    x = 142,211.56

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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.