Home / 261,468.68-392,151.38-71,880.14

Finding the Fourth Proportional to 261,468.68, 392,151.38 and 71,880.14

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Solution

The fourth proportional to 261,468.68, 392,151.38 and 71,880.14 is: 107,806.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,468.68 : 392,151.38 = 71,880.14 : x
  2. Step 2: Convert to fraction form
    261,468.68/392,151.38 = 71,880.14/x
  3. Step 3: Cross multiply
    261,468.68x = 392,151.38 × 71,880.14
  4. Step 4: Simplify right side
    261,468.68x = 28,187,896,095.59
  5. Step 5: Solve for x
    x = 28,187,896,095.59/261,468.68
  6. Step 6: Final answer
    x = 107,806.01

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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.