Home / 105,559.84-145,672.62-57,161.77

Finding the Fourth Proportional to 105,559.84, 145,672.62 and 57,161.77

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Solution

The fourth proportional to 105,559.84, 145,672.62 and 57,161.77 is: 78,883.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,559.84 : 145,672.62 = 57,161.77 : x
  2. Step 2: Convert to fraction form
    105,559.84/145,672.62 = 57,161.77/x
  3. Step 3: Cross multiply
    105,559.84x = 145,672.62 × 57,161.77
  4. Step 4: Simplify right side
    105,559.84x = 8,326,904,799.74
  5. Step 5: Solve for x
    x = 8,326,904,799.74/105,559.84
  6. Step 6: Final answer
    x = 78,883.26

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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.