Home / 216,634.07-298,982.86-121,146.14

Finding the Fourth Proportional to 216,634.07, 298,982.86 and 121,146.14

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Solution

The fourth proportional to 216,634.07, 298,982.86 and 121,146.14 is: 167,197.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,634.07 : 298,982.86 = 121,146.14 : x
  2. Step 2: Convert to fraction form
    216,634.07/298,982.86 = 121,146.14/x
  3. Step 3: Cross multiply
    216,634.07x = 298,982.86 × 121,146.14
  4. Step 4: Simplify right side
    216,634.07x = 36,220,617,617.38
  5. Step 5: Solve for x
    x = 36,220,617,617.38/216,634.07
  6. Step 6: Final answer
    x = 167,197.24

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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.