Home / 134,581.56-185,721.64-74,150.81

Finding the Fourth Proportional to 134,581.56, 185,721.64 and 74,150.81

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Solution

The fourth proportional to 134,581.56, 185,721.64 and 74,150.81 is: 102,327.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,581.56 : 185,721.64 = 74,150.81 : x
  2. Step 2: Convert to fraction form
    134,581.56/185,721.64 = 74,150.81/x
  3. Step 3: Cross multiply
    134,581.56x = 185,721.64 × 74,150.81
  4. Step 4: Simplify right side
    134,581.56x = 13,771,409,111.92
  5. Step 5: Solve for x
    x = 13,771,409,111.92/134,581.56
  6. Step 6: Final answer
    x = 102,327.61

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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.