Home / 123,929.03-171,023.14-67,340.40

Finding the Fourth Proportional to 123,929.03, 171,023.14 and 67,340.40

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Solution

The fourth proportional to 123,929.03, 171,023.14 and 67,340.40 is: 92,930.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,929.03 : 171,023.14 = 67,340.40 : x
  2. Step 2: Convert to fraction form
    123,929.03/171,023.14 = 67,340.40/x
  3. Step 3: Cross multiply
    123,929.03x = 171,023.14 × 67,340.40
  4. Step 4: Simplify right side
    123,929.03x = 11,516,766,656.86
  5. Step 5: Solve for x
    x = 11,516,766,656.86/123,929.03
  6. Step 6: Final answer
    x = 92,930.34

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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.