Home / 140,018.79-193,231.04-79,599.63

Finding the Fourth Proportional to 140,018.79, 193,231.04 and 79,599.63

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Solution

The fourth proportional to 140,018.79, 193,231.04 and 79,599.63 is: 109,850.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,018.79 : 193,231.04 = 79,599.63 : x
  2. Step 2: Convert to fraction form
    140,018.79/193,231.04 = 79,599.63/x
  3. Step 3: Cross multiply
    140,018.79x = 193,231.04 × 79,599.63
  4. Step 4: Simplify right side
    140,018.79x = 15,381,118,890.52
  5. Step 5: Solve for x
    x = 15,381,118,890.52/140,018.79
  6. Step 6: Final answer
    x = 109,850.39

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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.