Home / 112,987.86-155,933.10-62,010.42

Finding the Fourth Proportional to 112,987.86, 155,933.10 and 62,010.42

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Solution

The fourth proportional to 112,987.86, 155,933.10 and 62,010.42 is: 85,579.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,987.86 : 155,933.10 = 62,010.42 : x
  2. Step 2: Convert to fraction form
    112,987.86/155,933.10 = 62,010.42/x
  3. Step 3: Cross multiply
    112,987.86x = 155,933.10 × 62,010.42
  4. Step 4: Simplify right side
    112,987.86x = 9,669,477,315.28
  5. Step 5: Solve for x
    x = 9,669,477,315.28/112,987.86
  6. Step 6: Final answer
    x = 85,579.79

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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.