Home / 123,970.03-171,079.77-67,381.54

Finding the Fourth Proportional to 123,970.03, 171,079.77 and 67,381.54

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Solution

The fourth proportional to 123,970.03, 171,079.77 and 67,381.54 is: 92,987.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,970.03 : 171,079.77 = 67,381.54 : x
  2. Step 2: Convert to fraction form
    123,970.03/171,079.77 = 67,381.54/x
  3. Step 3: Cross multiply
    123,970.03x = 171,079.77 × 67,381.54
  4. Step 4: Simplify right side
    123,970.03x = 11,527,618,365.45
  5. Step 5: Solve for x
    x = 11,527,618,365.45/123,970.03
  6. Step 6: Final answer
    x = 92,987.14

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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.