Home / 125,267.82-187,430.88-87,900.78

Finding the Fourth Proportional to 125,267.82, 187,430.88 and 87,900.78

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Solution

The fourth proportional to 125,267.82, 187,430.88 and 87,900.78 is: 131,520.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,267.82 : 187,430.88 = 87,900.78 : x
  2. Step 2: Convert to fraction form
    125,267.82/187,430.88 = 87,900.78/x
  3. Step 3: Cross multiply
    125,267.82x = 187,430.88 × 87,900.78
  4. Step 4: Simplify right side
    125,267.82x = 16,475,320,548.09
  5. Step 5: Solve for x
    x = 16,475,320,548.09/125,267.82
  6. Step 6: Final answer
    x = 131,520.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.