Home / 111,333.47-153,649.91-61,042.19

Finding the Fourth Proportional to 111,333.47, 153,649.91 and 61,042.19

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Solution

The fourth proportional to 111,333.47, 153,649.91 and 61,042.19 is: 84,243.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,333.47 : 153,649.91 = 61,042.19 : x
  2. Step 2: Convert to fraction form
    111,333.47/153,649.91 = 61,042.19/x
  3. Step 3: Cross multiply
    111,333.47x = 153,649.91 × 61,042.19
  4. Step 4: Simplify right side
    111,333.47x = 9,379,125,926.24
  5. Step 5: Solve for x
    x = 9,379,125,926.24/111,333.47
  6. Step 6: Final answer
    x = 84,243.55

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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.