Home / 101,948.36-140,757.30-78,032.36

Finding the Fourth Proportional to 101,948.36, 140,757.30 and 78,032.36

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Solution

The fourth proportional to 101,948.36, 140,757.30 and 78,032.36 is: 107,737.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,948.36 : 140,757.30 = 78,032.36 : x
  2. Step 2: Convert to fraction form
    101,948.36/140,757.30 = 78,032.36/x
  3. Step 3: Cross multiply
    101,948.36x = 140,757.30 × 78,032.36
  4. Step 4: Simplify right side
    101,948.36x = 10,983,624,306.23
  5. Step 5: Solve for x
    x = 10,983,624,306.23/101,948.36
  6. Step 6: Final answer
    x = 107,737.14

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1.5x scale

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.