Home / 140,137.17-193,393.40-76,479.06

Finding the Fourth Proportional to 140,137.17, 193,393.40 and 76,479.06

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Solution

The fourth proportional to 140,137.17, 193,393.40 and 76,479.06 is: 105,543.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,137.17 : 193,393.40 = 76,479.06 : x
  2. Step 2: Convert to fraction form
    140,137.17/193,393.40 = 76,479.06/x
  3. Step 3: Cross multiply
    140,137.17x = 193,393.40 × 76,479.06
  4. Step 4: Simplify right side
    140,137.17x = 14,790,545,442.20
  5. Step 5: Solve for x
    x = 14,790,545,442.20/140,137.17
  6. Step 6: Final answer
    x = 105,543.34

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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.