Home / 151,708.83-209,370.06-83,739.30

Finding the Fourth Proportional to 151,708.83, 209,370.06 and 83,739.30

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Solution

The fourth proportional to 151,708.83, 209,370.06 and 83,739.30 is: 115,566.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,708.83 : 209,370.06 = 83,739.30 : x
  2. Step 2: Convert to fraction form
    151,708.83/209,370.06 = 83,739.30/x
  3. Step 3: Cross multiply
    151,708.83x = 209,370.06 × 83,739.30
  4. Step 4: Simplify right side
    151,708.83x = 17,532,502,265.36
  5. Step 5: Solve for x
    x = 17,532,502,265.36/151,708.83
  6. Step 6: Final answer
    x = 115,566.79

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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.