Home / 117,236.52-161,655.57-84,907.20

Finding the Fourth Proportional to 117,236.52, 161,655.57 and 84,907.20

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Solution

The fourth proportional to 117,236.52, 161,655.57 and 84,907.20 is: 117,077.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,236.52 : 161,655.57 = 84,907.20 : x
  2. Step 2: Convert to fraction form
    117,236.52/161,655.57 = 84,907.20/x
  3. Step 3: Cross multiply
    117,236.52x = 161,655.57 × 84,907.20
  4. Step 4: Simplify right side
    117,236.52x = 13,725,721,813.10
  5. Step 5: Solve for x
    x = 13,725,721,813.10/117,236.52
  6. Step 6: Final answer
    x = 117,077.19

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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.