Home / 125,212.74-187,820.55-45,256.78

Finding the Fourth Proportional to 125,212.74, 187,820.55 and 45,256.78

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Solution

The fourth proportional to 125,212.74, 187,820.55 and 45,256.78 is: 67,885.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,212.74 : 187,820.55 = 45,256.78 : x
  2. Step 2: Convert to fraction form
    125,212.74/187,820.55 = 45,256.78/x
  3. Step 3: Cross multiply
    125,212.74x = 187,820.55 × 45,256.78
  4. Step 4: Simplify right side
    125,212.74x = 8,500,153,310.83
  5. Step 5: Solve for x
    x = 8,500,153,310.83/125,212.74
  6. Step 6: Final answer
    x = 67,885.69

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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.