Home / 136,667.17-188,600.61-76,237.80

Finding the Fourth Proportional to 136,667.17, 188,600.61 and 76,237.80

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Solution

The fourth proportional to 136,667.17, 188,600.61 and 76,237.80 is: 105,208.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,667.17 : 188,600.61 = 76,237.80 : x
  2. Step 2: Convert to fraction form
    136,667.17/188,600.61 = 76,237.80/x
  3. Step 3: Cross multiply
    136,667.17x = 188,600.61 × 76,237.80
  4. Step 4: Simplify right side
    136,667.17x = 14,378,495,585.06
  5. Step 5: Solve for x
    x = 14,378,495,585.06/136,667.17
  6. Step 6: Final answer
    x = 105,208.12

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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.