Home / 136,947.89-188,984.55-76,519.03

Finding the Fourth Proportional to 136,947.89, 188,984.55 and 76,519.03

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Solution

The fourth proportional to 136,947.89, 188,984.55 and 76,519.03 is: 105,594.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,947.89 : 188,984.55 = 76,519.03 : x
  2. Step 2: Convert to fraction form
    136,947.89/188,984.55 = 76,519.03/x
  3. Step 3: Cross multiply
    136,947.89x = 188,984.55 × 76,519.03
  4. Step 4: Simplify right side
    136,947.89x = 14,460,913,506.06
  5. Step 5: Solve for x
    x = 14,460,913,506.06/136,947.89
  6. Step 6: Final answer
    x = 105,594.28

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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.