Home / 146,976.99-202,865-90,355.56

Finding the Fourth Proportional to 146,976.99, 202,865 and 90,355.56

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Solution

The fourth proportional to 146,976.99, 202,865 and 90,355.56 is: 124,713.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,976.99 : 202,865 = 90,355.56 : x
  2. Step 2: Convert to fraction form
    146,976.99/202,865 = 90,355.56/x
  3. Step 3: Cross multiply
    146,976.99x = 202,865 × 90,355.56
  4. Step 4: Simplify right side
    146,976.99x = 18,329,980,679.40
  5. Step 5: Solve for x
    x = 18,329,980,679.40/146,976.99
  6. Step 6: Final answer
    x = 124,713.27

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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.