Home / 220,970.32-304,939.56-120,366.16

Finding the Fourth Proportional to 220,970.32, 304,939.56 and 120,366.16

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Solution

The fourth proportional to 220,970.32, 304,939.56 and 120,366.16 is: 166,105.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,970.32 : 304,939.56 = 120,366.16 : x
  2. Step 2: Convert to fraction form
    220,970.32/304,939.56 = 120,366.16/x
  3. Step 3: Cross multiply
    220,970.32x = 304,939.56 × 120,366.16
  4. Step 4: Simplify right side
    220,970.32x = 36,704,403,869.29
  5. Step 5: Solve for x
    x = 36,704,403,869.29/220,970.32
  6. Step 6: Final answer
    x = 166,105.58

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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.