Home / 140,087.16-193,312.41-79,649.28

Finding the Fourth Proportional to 140,087.16, 193,312.41 and 79,649.28

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Solution

The fourth proportional to 140,087.16, 193,312.41 and 79,649.28 is: 109,911.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,087.16 : 193,312.41 = 79,649.28 : x
  2. Step 2: Convert to fraction form
    140,087.16/193,312.41 = 79,649.28/x
  3. Step 3: Cross multiply
    140,087.16x = 193,312.41 × 79,649.28
  4. Step 4: Simplify right side
    140,087.16x = 15,397,194,271.56
  5. Step 5: Solve for x
    x = 15,397,194,271.56/140,087.16
  6. Step 6: Final answer
    x = 109,911.53

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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.