Home / 125,130.89-172,679.75-67,768.92

Finding the Fourth Proportional to 125,130.89, 172,679.75 and 67,768.92

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Solution

The fourth proportional to 125,130.89, 172,679.75 and 67,768.92 is: 93,520.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,130.89 : 172,679.75 = 67,768.92 : x
  2. Step 2: Convert to fraction form
    125,130.89/172,679.75 = 67,768.92/x
  3. Step 3: Cross multiply
    125,130.89x = 172,679.75 × 67,768.92
  4. Step 4: Simplify right side
    125,130.89x = 11,702,320,078.66
  5. Step 5: Solve for x
    x = 11,702,320,078.66/125,130.89
  6. Step 6: Final answer
    x = 93,520.63

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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.