Home / 143,222.24-197,641.20-79,564.04

Finding the Fourth Proportional to 143,222.24, 197,641.20 and 79,564.04

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Solution

The fourth proportional to 143,222.24, 197,641.20 and 79,564.04 is: 109,795.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,222.24 : 197,641.20 = 79,564.04 : x
  2. Step 2: Convert to fraction form
    143,222.24/197,641.20 = 79,564.04/x
  3. Step 3: Cross multiply
    143,222.24x = 197,641.20 × 79,564.04
  4. Step 4: Simplify right side
    143,222.24x = 15,725,132,342.45
  5. Step 5: Solve for x
    x = 15,725,132,342.45/143,222.24
  6. Step 6: Final answer
    x = 109,795.32

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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.