Home / 101,340.14-139,847.15-56,016.38

Finding the Fourth Proportional to 101,340.14, 139,847.15 and 56,016.38

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Solution

The fourth proportional to 101,340.14, 139,847.15 and 56,016.38 is: 77,301.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,340.14 : 139,847.15 = 56,016.38 : x
  2. Step 2: Convert to fraction form
    101,340.14/139,847.15 = 56,016.38/x
  3. Step 3: Cross multiply
    101,340.14x = 139,847.15 × 56,016.38
  4. Step 4: Simplify right side
    101,340.14x = 7,833,730,537.12
  5. Step 5: Solve for x
    x = 7,833,730,537.12/101,340.14
  6. Step 6: Final answer
    x = 77,301.36

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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.