Home / 219,901.05-303,448.59-121,777.24

Finding the Fourth Proportional to 219,901.05, 303,448.59 and 121,777.24

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Solution

The fourth proportional to 219,901.05, 303,448.59 and 121,777.24 is: 168,044.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,901.05 : 303,448.59 = 121,777.24 : x
  2. Step 2: Convert to fraction form
    219,901.05/303,448.59 = 121,777.24/x
  3. Step 3: Cross multiply
    219,901.05x = 303,448.59 × 121,777.24
  4. Step 4: Simplify right side
    219,901.05x = 36,953,131,772.09
  5. Step 5: Solve for x
    x = 36,953,131,772.09/219,901.05
  6. Step 6: Final answer
    x = 168,044.36

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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.