Home / 208,983.47-288,219.53-140,989.64

Finding the Fourth Proportional to 208,983.47, 288,219.53 and 140,989.64

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Solution

The fourth proportional to 208,983.47, 288,219.53 and 140,989.64 is: 194,445.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,983.47 : 288,219.53 = 140,989.64 : x
  2. Step 2: Convert to fraction form
    208,983.47/288,219.53 = 140,989.64/x
  3. Step 3: Cross multiply
    208,983.47x = 288,219.53 × 140,989.64
  4. Step 4: Simplify right side
    208,983.47x = 40,635,966,687.05
  5. Step 5: Solve for x
    x = 40,635,966,687.05/208,983.47
  6. Step 6: Final answer
    x = 194,445.85

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1.5x scale

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.