Home / 111,582.12-153,983.32-61,281.12

Finding the Fourth Proportional to 111,582.12, 153,983.32 and 61,281.12

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Solution

The fourth proportional to 111,582.12, 153,983.32 and 61,281.12 is: 84,567.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,582.12 : 153,983.32 = 61,281.12 : x
  2. Step 2: Convert to fraction form
    111,582.12/153,983.32 = 61,281.12/x
  3. Step 3: Cross multiply
    111,582.12x = 153,983.32 × 61,281.12
  4. Step 4: Simplify right side
    111,582.12x = 9,436,270,310.92
  5. Step 5: Solve for x
    x = 9,436,270,310.92/111,582.12
  6. Step 6: Final answer
    x = 84,567.94

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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.