Home / 193,328.93-289,924.16-66,935.21

Finding the Fourth Proportional to 193,328.93, 289,924.16 and 66,935.21

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Solution

The fourth proportional to 193,328.93, 289,924.16 and 66,935.21 is: 100,378.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,328.93 : 289,924.16 = 66,935.21 : x
  2. Step 2: Convert to fraction form
    193,328.93/289,924.16 = 66,935.21/x
  3. Step 3: Cross multiply
    193,328.93x = 289,924.16 × 66,935.21
  4. Step 4: Simplify right side
    193,328.93x = 19,406,134,756.71
  5. Step 5: Solve for x
    x = 19,406,134,756.71/193,328.93
  6. Step 6: Final answer
    x = 100,378.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.