Home / 101,306.82-139,673.48-69,420.36

Finding the Fourth Proportional to 101,306.82, 139,673.48 and 69,420.36

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Solution

The fourth proportional to 101,306.82, 139,673.48 and 69,420.36 is: 95,711.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,306.82 : 139,673.48 = 69,420.36 : x
  2. Step 2: Convert to fraction form
    101,306.82/139,673.48 = 69,420.36/x
  3. Step 3: Cross multiply
    101,306.82x = 139,673.48 × 69,420.36
  4. Step 4: Simplify right side
    101,306.82x = 9,696,183,264.05
  5. Step 5: Solve for x
    x = 9,696,183,264.05/101,306.82
  6. Step 6: Final answer
    x = 95,711.06

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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.