Home / 140,226.12-193,510.62-86,489.64

Finding the Fourth Proportional to 140,226.12, 193,510.62 and 86,489.64

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Solution

The fourth proportional to 140,226.12, 193,510.62 and 86,489.64 is: 119,354.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,226.12 : 193,510.62 = 86,489.64 : x
  2. Step 2: Convert to fraction form
    140,226.12/193,510.62 = 86,489.64/x
  3. Step 3: Cross multiply
    140,226.12x = 193,510.62 × 86,489.64
  4. Step 4: Simplify right side
    140,226.12x = 16,736,663,859.98
  5. Step 5: Solve for x
    x = 16,736,663,859.98/140,226.12
  6. Step 6: Final answer
    x = 119,354.82

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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.