Home / 123,994.32-171,110.52-67,406.64

Finding the Fourth Proportional to 123,994.32, 171,110.52 and 67,406.64

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Solution

The fourth proportional to 123,994.32, 171,110.52 and 67,406.64 is: 93,020.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,994.32 : 171,110.52 = 67,406.64 : x
  2. Step 2: Convert to fraction form
    123,994.32/171,110.52 = 67,406.64/x
  3. Step 3: Cross multiply
    123,994.32x = 171,110.52 × 67,406.64
  4. Step 4: Simplify right side
    123,994.32x = 11,533,985,221.85
  5. Step 5: Solve for x
    x = 11,533,985,221.85/123,994.32
  6. Step 6: Final answer
    x = 93,020.27

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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.