Home / 157,660.39-217,571.31-101,071.75

Finding the Fourth Proportional to 157,660.39, 217,571.31 and 101,071.75

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Solution

The fourth proportional to 157,660.39, 217,571.31 and 101,071.75 is: 139,479.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,660.39 : 217,571.31 = 101,071.75 : x
  2. Step 2: Convert to fraction form
    157,660.39/217,571.31 = 101,071.75/x
  3. Step 3: Cross multiply
    157,660.39x = 217,571.31 × 101,071.75
  4. Step 4: Simplify right side
    157,660.39x = 21,990,313,051.49
  5. Step 5: Solve for x
    x = 21,990,313,051.49/157,660.39
  6. Step 6: Final answer
    x = 139,479.00

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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.