Home / 140,007.74-193,203.68-79,570.40

Finding the Fourth Proportional to 140,007.74, 193,203.68 and 79,570.40

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Solution

The fourth proportional to 140,007.74, 193,203.68 and 79,570.40 is: 109,803.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,007.74 : 193,203.68 = 79,570.40 : x
  2. Step 2: Convert to fraction form
    140,007.74/193,203.68 = 79,570.40/x
  3. Step 3: Cross multiply
    140,007.74x = 193,203.68 × 79,570.40
  4. Step 4: Simplify right side
    140,007.74x = 15,373,292,735.20
  5. Step 5: Solve for x
    x = 15,373,292,735.20/140,007.74
  6. Step 6: Final answer
    x = 109,803.17

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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.