Home / 208,823.28-288,176.56-123,957.36

Finding the Fourth Proportional to 208,823.28, 288,176.56 and 123,957.36

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Solution

The fourth proportional to 208,823.28, 288,176.56 and 123,957.36 is: 171,061.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,823.28 : 288,176.56 = 123,957.36 : x
  2. Step 2: Convert to fraction form
    208,823.28/288,176.56 = 123,957.36/x
  3. Step 3: Cross multiply
    208,823.28x = 288,176.56 × 123,957.36
  4. Step 4: Simplify right side
    208,823.28x = 35,721,605,591.48
  5. Step 5: Solve for x
    x = 35,721,605,591.48/208,823.28
  6. Step 6: Final answer
    x = 171,061.41

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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.