Home / 136,820.04-188,759.70-83,084.76

Finding the Fourth Proportional to 136,820.04, 188,759.70 and 83,084.76

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Solution

The fourth proportional to 136,820.04, 188,759.70 and 83,084.76 is: 114,625.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,820.04 : 188,759.70 = 83,084.76 : x
  2. Step 2: Convert to fraction form
    136,820.04/188,759.70 = 83,084.76/x
  3. Step 3: Cross multiply
    136,820.04x = 188,759.70 × 83,084.76
  4. Step 4: Simplify right side
    136,820.04x = 15,683,054,372.17
  5. Step 5: Solve for x
    x = 15,683,054,372.17/136,820.04
  6. Step 6: Final answer
    x = 114,625.42

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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.