Home / 138,860.30-191,626.26-75,196.64

Finding the Fourth Proportional to 138,860.30, 191,626.26 and 75,196.64

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Solution

The fourth proportional to 138,860.30, 191,626.26 and 75,196.64 is: 103,770.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,860.30 : 191,626.26 = 75,196.64 : x
  2. Step 2: Convert to fraction form
    138,860.30/191,626.26 = 75,196.64/x
  3. Step 3: Cross multiply
    138,860.30x = 191,626.26 × 75,196.64
  4. Step 4: Simplify right side
    138,860.30x = 14,409,650,887.77
  5. Step 5: Solve for x
    x = 14,409,650,887.77/138,860.30
  6. Step 6: Final answer
    x = 103,770.85

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1.5x scale

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.