Home / 216,661.14-299,007.66-121,176.72

Finding the Fourth Proportional to 216,661.14, 299,007.66 and 121,176.72

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Solution

The fourth proportional to 216,661.14, 299,007.66 and 121,176.72 is: 167,232.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,661.14 : 299,007.66 = 121,176.72 : x
  2. Step 2: Convert to fraction form
    216,661.14/299,007.66 = 121,176.72/x
  3. Step 3: Cross multiply
    216,661.14x = 299,007.66 × 121,176.72
  4. Step 4: Simplify right side
    216,661.14x = 36,232,767,493.68
  5. Step 5: Solve for x
    x = 36,232,767,493.68/216,661.14
  6. Step 6: Final answer
    x = 167,232.42

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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.