Home / 216,479.48-298,742.12-120,986.18

Finding the Fourth Proportional to 216,479.48, 298,742.12 and 120,986.18

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Solution

The fourth proportional to 216,479.48, 298,742.12 and 120,986.18 is: 166,961.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,479.48 : 298,742.12 = 120,986.18 : x
  2. Step 2: Convert to fraction form
    216,479.48/298,742.12 = 120,986.18/x
  3. Step 3: Cross multiply
    216,479.48x = 298,742.12 × 120,986.18
  4. Step 4: Simplify right side
    216,479.48x = 36,143,666,712.66
  5. Step 5: Solve for x
    x = 36,143,666,712.66/216,479.48
  6. Step 6: Final answer
    x = 166,961.17

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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.