Home / 123,684.13-185,509.79-67,587.58

Finding the Fourth Proportional to 123,684.13, 185,509.79 and 67,587.58

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Solution

The fourth proportional to 123,684.13, 185,509.79 and 67,587.58 is: 101,372.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,684.13 : 185,509.79 = 67,587.58 : x
  2. Step 2: Convert to fraction form
    123,684.13/185,509.79 = 67,587.58/x
  3. Step 3: Cross multiply
    123,684.13x = 185,509.79 × 67,587.58
  4. Step 4: Simplify right side
    123,684.13x = 12,538,158,299.99
  5. Step 5: Solve for x
    x = 12,538,158,299.99/123,684.13
  6. Step 6: Final answer
    x = 101,372.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.