Home / 101,436.49-139,992.82-58,417.39

Finding the Fourth Proportional to 101,436.49, 139,992.82 and 58,417.39

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Solution

The fourth proportional to 101,436.49, 139,992.82 and 58,417.39 is: 80,622.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,436.49 : 139,992.82 = 58,417.39 : x
  2. Step 2: Convert to fraction form
    101,436.49/139,992.82 = 58,417.39/x
  3. Step 3: Cross multiply
    101,436.49x = 139,992.82 × 58,417.39
  4. Step 4: Simplify right side
    101,436.49x = 8,178,015,163.14
  5. Step 5: Solve for x
    x = 8,178,015,163.14/101,436.49
  6. Step 6: Final answer
    x = 80,622.02

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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.