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Finding the Fourth Proportional to 125,149.56, 187,744.80 and 40,885.26

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Solution

The fourth proportional to 125,149.56, 187,744.80 and 40,885.26 is: 61,334.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,149.56 : 187,744.80 = 40,885.26 : x
  2. Step 2: Convert to fraction form
    125,149.56/187,744.80 = 40,885.26/x
  3. Step 3: Cross multiply
    125,149.56x = 187,744.80 × 40,885.26
  4. Step 4: Simplify right side
    125,149.56x = 7,675,994,410.92
  5. Step 5: Solve for x
    x = 7,675,994,410.92/125,149.56
  6. Step 6: Final answer
    x = 61,334.57

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1.5x scale

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.