Home / 105,114.69-157,578.28-38,539.31

Finding the Fourth Proportional to 105,114.69, 157,578.28 and 38,539.31

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Solution

The fourth proportional to 105,114.69, 157,578.28 and 38,539.31 is: 57,774.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,114.69 : 157,578.28 = 38,539.31 : x
  2. Step 2: Convert to fraction form
    105,114.69/157,578.28 = 38,539.31/x
  3. Step 3: Cross multiply
    105,114.69x = 157,578.28 × 38,539.31
  4. Step 4: Simplify right side
    105,114.69x = 6,072,957,297.95
  5. Step 5: Solve for x
    x = 6,072,957,297.95/105,114.69
  6. Step 6: Final answer
    x = 57,774.58

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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.