Home / 123,945.96-171,024.30-70,219.88

Finding the Fourth Proportional to 123,945.96, 171,024.30 and 70,219.88

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Solution

The fourth proportional to 123,945.96, 171,024.30 and 70,219.88 is: 96,891.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,945.96 : 171,024.30 = 70,219.88 : x
  2. Step 2: Convert to fraction form
    123,945.96/171,024.30 = 70,219.88/x
  3. Step 3: Cross multiply
    123,945.96x = 171,024.30 × 70,219.88
  4. Step 4: Simplify right side
    123,945.96x = 12,009,305,823.08
  5. Step 5: Solve for x
    x = 12,009,305,823.08/123,945.96
  6. Step 6: Final answer
    x = 96,891.47

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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.