Home / 140,065.28-193,227.52-86,330.68

Finding the Fourth Proportional to 140,065.28, 193,227.52 and 86,330.68

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Solution

The fourth proportional to 140,065.28, 193,227.52 and 86,330.68 is: 119,097.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,065.28 : 193,227.52 = 86,330.68 : x
  2. Step 2: Convert to fraction form
    140,065.28/193,227.52 = 86,330.68/x
  3. Step 3: Cross multiply
    140,065.28x = 193,227.52 × 86,330.68
  4. Step 4: Simplify right side
    140,065.28x = 16,681,463,196.31
  5. Step 5: Solve for x
    x = 16,681,463,196.31/140,065.28
  6. Step 6: Final answer
    x = 119,097.77

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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.