Home / 140,090.30-193,323.66-79,660.94

Finding the Fourth Proportional to 140,090.30, 193,323.66 and 79,660.94

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Solution

The fourth proportional to 140,090.30, 193,323.66 and 79,660.94 is: 109,931.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,090.30 : 193,323.66 = 79,660.94 : x
  2. Step 2: Convert to fraction form
    140,090.30/193,323.66 = 79,660.94/x
  3. Step 3: Cross multiply
    140,090.30x = 193,323.66 × 79,660.94
  4. Step 4: Simplify right side
    140,090.30x = 15,400,343,513.22
  5. Step 5: Solve for x
    x = 15,400,343,513.22/140,090.30
  6. Step 6: Final answer
    x = 109,931.55

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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.