Home / 125,027.88-187,412.22-78,173.16

Finding the Fourth Proportional to 125,027.88, 187,412.22 and 78,173.16

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Solution

The fourth proportional to 125,027.88, 187,412.22 and 78,173.16 is: 117,178.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,027.88 : 187,412.22 = 78,173.16 : x
  2. Step 2: Convert to fraction form
    125,027.88/187,412.22 = 78,173.16/x
  3. Step 3: Cross multiply
    125,027.88x = 187,412.22 × 78,173.16
  4. Step 4: Simplify right side
    125,027.88x = 14,650,605,460.02
  5. Step 5: Solve for x
    x = 14,650,605,460.02/125,027.88
  6. Step 6: Final answer
    x = 117,178.71

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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.