Home / 213,369.06-294,448.56-122,720.76

Finding the Fourth Proportional to 213,369.06, 294,448.56 and 122,720.76

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Solution

The fourth proportional to 213,369.06, 294,448.56 and 122,720.76 is: 169,354.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,369.06 : 294,448.56 = 122,720.76 : x
  2. Step 2: Convert to fraction form
    213,369.06/294,448.56 = 122,720.76/x
  3. Step 3: Cross multiply
    213,369.06x = 294,448.56 × 122,720.76
  4. Step 4: Simplify right side
    213,369.06x = 36,134,951,064.11
  5. Step 5: Solve for x
    x = 36,134,951,064.11/213,369.06
  6. Step 6: Final answer
    x = 169,354.22

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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.