Home / 140,037.39-193,268.21-79,617.15

Finding the Fourth Proportional to 140,037.39, 193,268.21 and 79,617.15

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Solution

The fourth proportional to 140,037.39, 193,268.21 and 79,617.15 is: 109,881.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,037.39 : 193,268.21 = 79,617.15 : x
  2. Step 2: Convert to fraction form
    140,037.39/193,268.21 = 79,617.15/x
  3. Step 3: Cross multiply
    140,037.39x = 193,268.21 × 79,617.15
  4. Step 4: Simplify right side
    140,037.39x = 15,387,463,667.72
  5. Step 5: Solve for x
    x = 15,387,463,667.72/140,037.39
  6. Step 6: Final answer
    x = 109,881.11

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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.