Home / 101,853.13-140,563.89-56,531.12

Finding the Fourth Proportional to 101,853.13, 140,563.89 and 56,531.12

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Solution

The fourth proportional to 101,853.13, 140,563.89 and 56,531.12 is: 78,016.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,853.13 : 140,563.89 = 56,531.12 : x
  2. Step 2: Convert to fraction form
    101,853.13/140,563.89 = 56,531.12/x
  3. Step 3: Cross multiply
    101,853.13x = 140,563.89 × 56,531.12
  4. Step 4: Simplify right side
    101,853.13x = 7,946,233,430.44
  5. Step 5: Solve for x
    x = 7,946,233,430.44/101,853.13
  6. Step 6: Final answer
    x = 78,016.59

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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.