Home / 113,977.33-157,204.60-101,072.21

Finding the Fourth Proportional to 113,977.33, 157,204.60 and 101,072.21

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Solution

The fourth proportional to 113,977.33, 157,204.60 and 101,072.21 is: 139,405.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,977.33 : 157,204.60 = 101,072.21 : x
  2. Step 2: Convert to fraction form
    113,977.33/157,204.60 = 101,072.21/x
  3. Step 3: Cross multiply
    113,977.33x = 157,204.60 × 101,072.21
  4. Step 4: Simplify right side
    113,977.33x = 15,889,015,305.46
  5. Step 5: Solve for x
    x = 15,889,015,305.46/113,977.33
  6. Step 6: Final answer
    x = 139,405.05

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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.