Home / 138,734.07-191,453.51-75,071.86

Finding the Fourth Proportional to 138,734.07, 191,453.51 and 75,071.86

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Solution

The fourth proportional to 138,734.07, 191,453.51 and 75,071.86 is: 103,599.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,734.07 : 191,453.51 = 75,071.86 : x
  2. Step 2: Convert to fraction form
    138,734.07/191,453.51 = 75,071.86/x
  3. Step 3: Cross multiply
    138,734.07x = 191,453.51 × 75,071.86
  4. Step 4: Simplify right side
    138,734.07x = 14,372,770,808.27
  5. Step 5: Solve for x
    x = 14,372,770,808.27/138,734.07
  6. Step 6: Final answer
    x = 103,599.43

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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.