Home / 146,389.13-202,017.26-79,321.13

Finding the Fourth Proportional to 146,389.13, 202,017.26 and 79,321.13

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Solution

The fourth proportional to 146,389.13, 202,017.26 and 79,321.13 is: 109,463.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,389.13 : 202,017.26 = 79,321.13 : x
  2. Step 2: Convert to fraction form
    146,389.13/202,017.26 = 79,321.13/x
  3. Step 3: Cross multiply
    146,389.13x = 202,017.26 × 79,321.13
  4. Step 4: Simplify right side
    146,389.13x = 16,024,236,530.92
  5. Step 5: Solve for x
    x = 16,024,236,530.92/146,389.13
  6. Step 6: Final answer
    x = 109,463.30

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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.