Home / 151,713.30-209,360.40-83,729.36

Finding the Fourth Proportional to 151,713.30, 209,360.40 and 83,729.36

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Solution

The fourth proportional to 151,713.30, 209,360.40 and 83,729.36 is: 115,544.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,713.30 : 209,360.40 = 83,729.36 : x
  2. Step 2: Convert to fraction form
    151,713.30/209,360.40 = 83,729.36/x
  3. Step 3: Cross multiply
    151,713.30x = 209,360.40 × 83,729.36
  4. Step 4: Simplify right side
    151,713.30x = 17,529,612,301.34
  5. Step 5: Solve for x
    x = 17,529,612,301.34/151,713.30
  6. Step 6: Final answer
    x = 115,544.33

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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.