Home / 261,636.24-392,519.97-103,812.60

Finding the Fourth Proportional to 261,636.24, 392,519.97 and 103,812.60

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Solution

The fourth proportional to 261,636.24, 392,519.97 and 103,812.60 is: 155,744.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,636.24 : 392,519.97 = 103,812.60 : x
  2. Step 2: Convert to fraction form
    261,636.24/392,519.97 = 103,812.60/x
  3. Step 3: Cross multiply
    261,636.24x = 392,519.97 × 103,812.60
  4. Step 4: Simplify right side
    261,636.24x = 40,748,518,637.62
  5. Step 5: Solve for x
    x = 40,748,518,637.62/261,636.24
  6. Step 6: Final answer
    x = 155,744.93

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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.