Home / 217,130.10-299,651.84-121,667.54

Finding the Fourth Proportional to 217,130.10, 299,651.84 and 121,667.54

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Solution

The fourth proportional to 217,130.10, 299,651.84 and 121,667.54 is: 167,908.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,130.10 : 299,651.84 = 121,667.54 : x
  2. Step 2: Convert to fraction form
    217,130.10/299,651.84 = 121,667.54/x
  3. Step 3: Cross multiply
    217,130.10x = 299,651.84 × 121,667.54
  4. Step 4: Simplify right side
    217,130.10x = 36,457,902,229.27
  5. Step 5: Solve for x
    x = 36,457,902,229.27/217,130.10
  6. Step 6: Final answer
    x = 167,908.10

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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.