Home / 140,392.76-193,740.90-79,133.36

Finding the Fourth Proportional to 140,392.76, 193,740.90 and 79,133.36

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Solution

The fourth proportional to 140,392.76, 193,740.90 and 79,133.36 is: 109,203.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,392.76 : 193,740.90 = 79,133.36 : x
  2. Step 2: Convert to fraction form
    140,392.76/193,740.90 = 79,133.36/x
  3. Step 3: Cross multiply
    140,392.76x = 193,740.90 × 79,133.36
  4. Step 4: Simplify right side
    140,392.76x = 15,331,368,386.42
  5. Step 5: Solve for x
    x = 15,331,368,386.42/140,392.76
  6. Step 6: Final answer
    x = 109,203.41

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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.