Home / 138,606.42-191,276.97-74,944.26

Finding the Fourth Proportional to 138,606.42, 191,276.97 and 74,944.26

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Solution

The fourth proportional to 138,606.42, 191,276.97 and 74,944.26 is: 103,423.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,606.42 : 191,276.97 = 74,944.26 : x
  2. Step 2: Convert to fraction form
    138,606.42/191,276.97 = 74,944.26/x
  3. Step 3: Cross multiply
    138,606.42x = 191,276.97 × 74,944.26
  4. Step 4: Simplify right side
    138,606.42x = 14,335,110,971.69
  5. Step 5: Solve for x
    x = 14,335,110,971.69/138,606.42
  6. Step 6: Final answer
    x = 103,423.14

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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.