Home / 136,988.33-189,042.41-75,734.25

Finding the Fourth Proportional to 136,988.33, 189,042.41 and 75,734.25

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Solution

The fourth proportional to 136,988.33, 189,042.41 and 75,734.25 is: 104,512.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,988.33 : 189,042.41 = 75,734.25 : x
  2. Step 2: Convert to fraction form
    136,988.33/189,042.41 = 75,734.25/x
  3. Step 3: Cross multiply
    136,988.33x = 189,042.41 × 75,734.25
  4. Step 4: Simplify right side
    136,988.33x = 14,316,985,683.33
  5. Step 5: Solve for x
    x = 14,316,985,683.33/136,988.33
  6. Step 6: Final answer
    x = 104,512.45

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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.