Home / 149,713.88-206,639.90-98,735.82

Finding the Fourth Proportional to 149,713.88, 206,639.90 and 98,735.82

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Solution

The fourth proportional to 149,713.88, 206,639.90 and 98,735.82 is: 136,278.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,713.88 : 206,639.90 = 98,735.82 : x
  2. Step 2: Convert to fraction form
    149,713.88/206,639.90 = 98,735.82/x
  3. Step 3: Cross multiply
    149,713.88x = 206,639.90 × 98,735.82
  4. Step 4: Simplify right side
    149,713.88x = 20,402,759,971.22
  5. Step 5: Solve for x
    x = 20,402,759,971.22/149,713.88
  6. Step 6: Final answer
    x = 136,278.35

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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.