Home / 216,729.15-325,087.65-98,400.30

Finding the Fourth Proportional to 216,729.15, 325,087.65 and 98,400.30

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Solution

The fourth proportional to 216,729.15, 325,087.65 and 98,400.30 is: 147,597.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,729.15 : 325,087.65 = 98,400.30 : x
  2. Step 2: Convert to fraction form
    216,729.15/325,087.65 = 98,400.30/x
  3. Step 3: Cross multiply
    216,729.15x = 325,087.65 × 98,400.30
  4. Step 4: Simplify right side
    216,729.15x = 31,988,722,286.30
  5. Step 5: Solve for x
    x = 31,988,722,286.30/216,729.15
  6. Step 6: Final answer
    x = 147,597.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.