Home / 137,838.17-190,288.92-92,753.21

Finding the Fourth Proportional to 137,838.17, 190,288.92 and 92,753.21

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Solution

The fourth proportional to 137,838.17, 190,288.92 and 92,753.21 is: 128,048.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,838.17 : 190,288.92 = 92,753.21 : x
  2. Step 2: Convert to fraction form
    137,838.17/190,288.92 = 92,753.21/x
  3. Step 3: Cross multiply
    137,838.17x = 190,288.92 × 92,753.21
  4. Step 4: Simplify right side
    137,838.17x = 17,649,908,157.43
  5. Step 5: Solve for x
    x = 17,649,908,157.43/137,838.17
  6. Step 6: Final answer
    x = 128,048.04

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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.