Home / 518,078.13-777,161.20-144,101.13

Finding the Fourth Proportional to 518,078.13, 777,161.20 and 144,101.13

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Solution

The fourth proportional to 518,078.13, 777,161.20 and 144,101.13 is: 216,163.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,078.13 : 777,161.20 = 144,101.13 : x
  2. Step 2: Convert to fraction form
    518,078.13/777,161.20 = 144,101.13/x
  3. Step 3: Cross multiply
    518,078.13x = 777,161.20 × 144,101.13
  4. Step 4: Simplify right side
    518,078.13x = 111,989,807,112.16
  5. Step 5: Solve for x
    x = 111,989,807,112.16/518,078.13
  6. Step 6: Final answer
    x = 216,163.93

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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.