Home / 111,531.04-153,059.09-110,743.72

Finding the Fourth Proportional to 111,531.04, 153,059.09 and 110,743.72

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Solution

The fourth proportional to 111,531.04, 153,059.09 and 110,743.72 is: 151,978.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,531.04 : 153,059.09 = 110,743.72 : x
  2. Step 2: Convert to fraction form
    111,531.04/153,059.09 = 110,743.72/x
  3. Step 3: Cross multiply
    111,531.04x = 153,059.09 × 110,743.72
  4. Step 4: Simplify right side
    111,531.04x = 16,950,333,006.41
  5. Step 5: Solve for x
    x = 16,950,333,006.41/111,531.04
  6. Step 6: Final answer
    x = 151,978.62

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.