Home / 136,716.03-188,667.90-76,283.01

Finding the Fourth Proportional to 136,716.03, 188,667.90 and 76,283.01

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Solution

The fourth proportional to 136,716.03, 188,667.90 and 76,283.01 is: 105,270.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,716.03 : 188,667.90 = 76,283.01 : x
  2. Step 2: Convert to fraction form
    136,716.03/188,667.90 = 76,283.01/x
  3. Step 3: Cross multiply
    136,716.03x = 188,667.90 × 76,283.01
  4. Step 4: Simplify right side
    136,716.03x = 14,392,155,302.38
  5. Step 5: Solve for x
    x = 14,392,155,302.38/136,716.03
  6. Step 6: Final answer
    x = 105,270.43

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1.5x scale

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.