Home / 101,427.14-139,968.24-56,101.56

Finding the Fourth Proportional to 101,427.14, 139,968.24 and 56,101.56

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Solution

The fourth proportional to 101,427.14, 139,968.24 and 56,101.56 is: 77,419.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,427.14 : 139,968.24 = 56,101.56 : x
  2. Step 2: Convert to fraction form
    101,427.14/139,968.24 = 56,101.56/x
  3. Step 3: Cross multiply
    101,427.14x = 139,968.24 × 56,101.56
  4. Step 4: Simplify right side
    101,427.14x = 7,852,436,614.45
  5. Step 5: Solve for x
    x = 7,852,436,614.45/101,427.14
  6. Step 6: Final answer
    x = 77,419.49

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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.