Home / 121,458.12-183,112.05-112,896.02

Finding the Fourth Proportional to 121,458.12, 183,112.05 and 112,896.02

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Solution

The fourth proportional to 121,458.12, 183,112.05 and 112,896.02 is: 170,203.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,458.12 : 183,112.05 = 112,896.02 : x
  2. Step 2: Convert to fraction form
    121,458.12/183,112.05 = 112,896.02/x
  3. Step 3: Cross multiply
    121,458.12x = 183,112.05 × 112,896.02
  4. Step 4: Simplify right side
    121,458.12x = 20,672,620,743.48
  5. Step 5: Solve for x
    x = 20,672,620,743.48/121,458.12
  6. Step 6: Final answer
    x = 170,203.69

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.