Home / 261,759.15-392,481.03-117,638.55

Finding the Fourth Proportional to 261,759.15, 392,481.03 and 117,638.55

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Solution

The fourth proportional to 261,759.15, 392,481.03 and 117,638.55 is: 176,386.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,759.15 : 392,481.03 = 117,638.55 : x
  2. Step 2: Convert to fraction form
    261,759.15/392,481.03 = 117,638.55/x
  3. Step 3: Cross multiply
    261,759.15x = 392,481.03 × 117,638.55
  4. Step 4: Simplify right side
    261,759.15x = 46,170,899,271.71
  5. Step 5: Solve for x
    x = 46,170,899,271.71/261,759.15
  6. Step 6: Final answer
    x = 176,386.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.