Home / 115,361.86-172,907.10-52,108.14

Finding the Fourth Proportional to 115,361.86, 172,907.10 and 52,108.14

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Solution

The fourth proportional to 115,361.86, 172,907.10 and 52,108.14 is: 78,100.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,361.86 : 172,907.10 = 52,108.14 : x
  2. Step 2: Convert to fraction form
    115,361.86/172,907.10 = 52,108.14/x
  3. Step 3: Cross multiply
    115,361.86x = 172,907.10 × 52,108.14
  4. Step 4: Simplify right side
    115,361.86x = 9,009,867,373.79
  5. Step 5: Solve for x
    x = 9,009,867,373.79/115,361.86
  6. Step 6: Final answer
    x = 78,100.92

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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.