Home / 221,127.96-305,156.68-125,634.80

Finding the Fourth Proportional to 221,127.96, 305,156.68 and 125,634.80

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Solution

The fourth proportional to 221,127.96, 305,156.68 and 125,634.80 is: 173,376.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,127.96 : 305,156.68 = 125,634.80 : x
  2. Step 2: Convert to fraction form
    221,127.96/305,156.68 = 125,634.80/x
  3. Step 3: Cross multiply
    221,127.96x = 305,156.68 × 125,634.80
  4. Step 4: Simplify right side
    221,127.96x = 38,338,298,460.46
  5. Step 5: Solve for x
    x = 38,338,298,460.46/221,127.96
  6. Step 6: Final answer
    x = 173,376.08

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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.