Home / 101,948.25-140,688.75-56,625.03

Finding the Fourth Proportional to 101,948.25, 140,688.75 and 56,625.03

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Solution

The fourth proportional to 101,948.25, 140,688.75 and 56,625.03 is: 78,142.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,948.25 : 140,688.75 = 56,625.03 : x
  2. Step 2: Convert to fraction form
    101,948.25/140,688.75 = 56,625.03/x
  3. Step 3: Cross multiply
    101,948.25x = 140,688.75 × 56,625.03
  4. Step 4: Simplify right side
    101,948.25x = 7,966,504,689.41
  5. Step 5: Solve for x
    x = 7,966,504,689.41/101,948.25
  6. Step 6: Final answer
    x = 78,142.63

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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.