Home / 127,453.10-191,205.16-71,372.95

Finding the Fourth Proportional to 127,453.10, 191,205.16 and 71,372.95

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Solution

The fourth proportional to 127,453.10, 191,205.16 and 71,372.95 is: 107,073.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,453.10 : 191,205.16 = 71,372.95 : x
  2. Step 2: Convert to fraction form
    127,453.10/191,205.16 = 71,372.95/x
  3. Step 3: Cross multiply
    127,453.10x = 191,205.16 × 71,372.95
  4. Step 4: Simplify right side
    127,453.10x = 13,646,875,667.98
  5. Step 5: Solve for x
    x = 13,646,875,667.98/127,453.10
  6. Step 6: Final answer
    x = 107,073.71

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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.