Home / 187,900.48-259,302.60-103,015.72

Finding the Fourth Proportional to 187,900.48, 259,302.60 and 103,015.72

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Solution

The fourth proportional to 187,900.48, 259,302.60 and 103,015.72 is: 142,161.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,900.48 : 259,302.60 = 103,015.72 : x
  2. Step 2: Convert to fraction form
    187,900.48/259,302.60 = 103,015.72/x
  3. Step 3: Cross multiply
    187,900.48x = 259,302.60 × 103,015.72
  4. Step 4: Simplify right side
    187,900.48x = 26,712,244,036.87
  5. Step 5: Solve for x
    x = 26,712,244,036.87/187,900.48
  6. Step 6: Final answer
    x = 142,161.66

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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.