Home / 220,015.16-303,618.48-123,219.89

Finding the Fourth Proportional to 220,015.16, 303,618.48 and 123,219.89

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Solution

The fourth proportional to 220,015.16, 303,618.48 and 123,219.89 is: 170,042.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,015.16 : 303,618.48 = 123,219.89 : x
  2. Step 2: Convert to fraction form
    220,015.16/303,618.48 = 123,219.89/x
  3. Step 3: Cross multiply
    220,015.16x = 303,618.48 × 123,219.89
  4. Step 4: Simplify right side
    220,015.16x = 37,411,835,707.57
  5. Step 5: Solve for x
    x = 37,411,835,707.57/220,015.16
  6. Step 6: Final answer
    x = 170,042.08

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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.