Home / 187,878.18-259,277.86-102,994.50

Finding the Fourth Proportional to 187,878.18, 259,277.86 and 102,994.50

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Solution

The fourth proportional to 187,878.18, 259,277.86 and 102,994.50 is: 142,135.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,878.18 : 259,277.86 = 102,994.50 : x
  2. Step 2: Convert to fraction form
    187,878.18/259,277.86 = 102,994.50/x
  3. Step 3: Cross multiply
    187,878.18x = 259,277.86 × 102,994.50
  4. Step 4: Simplify right side
    187,878.18x = 26,704,193,551.77
  5. Step 5: Solve for x
    x = 26,704,193,551.77/187,878.18
  6. Step 6: Final answer
    x = 142,135.68

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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.