Home / 151,749.54-209,425.95-83,779.61

Finding the Fourth Proportional to 151,749.54, 209,425.95 and 83,779.61

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Solution

The fourth proportional to 151,749.54, 209,425.95 and 83,779.61 is: 115,622.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,749.54 : 209,425.95 = 83,779.61 : x
  2. Step 2: Convert to fraction form
    151,749.54/209,425.95 = 83,779.61/x
  3. Step 3: Cross multiply
    151,749.54x = 209,425.95 × 83,779.61
  4. Step 4: Simplify right side
    151,749.54x = 17,545,623,367.75
  5. Step 5: Solve for x
    x = 17,545,623,367.75/151,749.54
  6. Step 6: Final answer
    x = 115,622.25

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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.