Home / 105,121.11-157,702.43-38,561.82

Finding the Fourth Proportional to 105,121.11, 157,702.43 and 38,561.82

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Solution

The fourth proportional to 105,121.11, 157,702.43 and 38,561.82 is: 57,850.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,121.11 : 157,702.43 = 38,561.82 : x
  2. Step 2: Convert to fraction form
    105,121.11/157,702.43 = 38,561.82/x
  3. Step 3: Cross multiply
    105,121.11x = 157,702.43 × 38,561.82
  4. Step 4: Simplify right side
    105,121.11x = 6,081,292,719.22
  5. Step 5: Solve for x
    x = 6,081,292,719.22/105,121.11
  6. Step 6: Final answer
    x = 57,850.35

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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.