Home / 138,733.32-191,452.49-75,071.12

Finding the Fourth Proportional to 138,733.32, 191,452.49 and 75,071.12

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Solution

The fourth proportional to 138,733.32, 191,452.49 and 75,071.12 is: 103,598.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,733.32 : 191,452.49 = 75,071.12 : x
  2. Step 2: Convert to fraction form
    138,733.32/191,452.49 = 75,071.12/x
  3. Step 3: Cross multiply
    138,733.32x = 191,452.49 × 75,071.12
  4. Step 4: Simplify right side
    138,733.32x = 14,372,551,518.47
  5. Step 5: Solve for x
    x = 14,372,551,518.47/138,733.32
  6. Step 6: Final answer
    x = 103,598.41

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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.