Home / 103,749.76-155,390.40-62,108.80

Finding the Fourth Proportional to 103,749.76, 155,390.40 and 62,108.80

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Solution

The fourth proportional to 103,749.76, 155,390.40 and 62,108.80 is: 93,022.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,749.76 : 155,390.40 = 62,108.80 : x
  2. Step 2: Convert to fraction form
    103,749.76/155,390.40 = 62,108.80/x
  3. Step 3: Cross multiply
    103,749.76x = 155,390.40 × 62,108.80
  4. Step 4: Simplify right side
    103,749.76x = 9,651,111,275.52
  5. Step 5: Solve for x
    x = 9,651,111,275.52/103,749.76
  6. Step 6: Final answer
    x = 93,022.97

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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.