Home / 140,232.96-193,550.40-79,807.68

Finding the Fourth Proportional to 140,232.96, 193,550.40 and 79,807.68

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Solution

The fourth proportional to 140,232.96, 193,550.40 and 79,807.68 is: 110,151.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,232.96 : 193,550.40 = 79,807.68 : x
  2. Step 2: Convert to fraction form
    140,232.96/193,550.40 = 79,807.68/x
  3. Step 3: Cross multiply
    140,232.96x = 193,550.40 × 79,807.68
  4. Step 4: Simplify right side
    140,232.96x = 15,446,808,387.07
  5. Step 5: Solve for x
    x = 15,446,808,387.07/140,232.96
  6. Step 6: Final answer
    x = 110,151.05

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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.