Home / 159,555.92-220,224.68-99,172.16

Finding the Fourth Proportional to 159,555.92, 220,224.68 and 99,172.16

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Solution

The fourth proportional to 159,555.92, 220,224.68 and 99,172.16 is: 136,880.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,555.92 : 220,224.68 = 99,172.16 : x
  2. Step 2: Convert to fraction form
    159,555.92/220,224.68 = 99,172.16/x
  3. Step 3: Cross multiply
    159,555.92x = 220,224.68 × 99,172.16
  4. Step 4: Simplify right side
    159,555.92x = 21,840,157,200.91
  5. Step 5: Solve for x
    x = 21,840,157,200.91/159,555.92
  6. Step 6: Final answer
    x = 136,880.90

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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.