Home / 220,972.05-304,941.81-125,478.72

Finding the Fourth Proportional to 220,972.05, 304,941.81 and 125,478.72

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Solution

The fourth proportional to 220,972.05, 304,941.81 and 125,478.72 is: 173,160.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,972.05 : 304,941.81 = 125,478.72 : x
  2. Step 2: Convert to fraction form
    220,972.05/304,941.81 = 125,478.72/x
  3. Step 3: Cross multiply
    220,972.05x = 304,941.81 × 125,478.72
  4. Step 4: Simplify right side
    220,972.05x = 38,263,708,463.83
  5. Step 5: Solve for x
    x = 38,263,708,463.83/220,972.05
  6. Step 6: Final answer
    x = 173,160.85

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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.