Home / 111,582.06-153,986.79-61,281.06

Finding the Fourth Proportional to 111,582.06, 153,986.79 and 61,281.06

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Solution

The fourth proportional to 111,582.06, 153,986.79 and 61,281.06 is: 84,569.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,582.06 : 153,986.79 = 61,281.06 : x
  2. Step 2: Convert to fraction form
    111,582.06/153,986.79 = 61,281.06/x
  3. Step 3: Cross multiply
    111,582.06x = 153,986.79 × 61,281.06
  4. Step 4: Simplify right side
    111,582.06x = 9,436,473,717.20
  5. Step 5: Solve for x
    x = 9,436,473,717.20/111,582.06
  6. Step 6: Final answer
    x = 84,569.81

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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.