Home / 216,509.46-298,775.03-121,017.75

Finding the Fourth Proportional to 216,509.46, 298,775.03 and 121,017.75

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Solution

The fourth proportional to 216,509.46, 298,775.03 and 121,017.75 is: 167,000.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,509.46 : 298,775.03 = 121,017.75 : x
  2. Step 2: Convert to fraction form
    216,509.46/298,775.03 = 121,017.75/x
  3. Step 3: Cross multiply
    216,509.46x = 298,775.03 × 121,017.75
  4. Step 4: Simplify right side
    216,509.46x = 36,157,080,842.01
  5. Step 5: Solve for x
    x = 36,157,080,842.01/216,509.46
  6. Step 6: Final answer
    x = 167,000.01

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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.