Home / 113,877.24-157,138.60-66,121.24

Finding the Fourth Proportional to 113,877.24, 157,138.60 and 66,121.24

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Solution

The fourth proportional to 113,877.24, 157,138.60 and 66,121.24 is: 91,240.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,877.24 : 157,138.60 = 66,121.24 : x
  2. Step 2: Convert to fraction form
    113,877.24/157,138.60 = 66,121.24/x
  3. Step 3: Cross multiply
    113,877.24x = 157,138.60 × 66,121.24
  4. Step 4: Simplify right side
    113,877.24x = 10,390,199,083.86
  5. Step 5: Solve for x
    x = 10,390,199,083.86/113,877.24
  6. Step 6: Final answer
    x = 91,240.35

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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.