Home / 136,618.64-188,534.55-76,193.12

Finding the Fourth Proportional to 136,618.64, 188,534.55 and 76,193.12

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Solution

The fourth proportional to 136,618.64, 188,534.55 and 76,193.12 is: 105,146.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,618.64 : 188,534.55 = 76,193.12 : x
  2. Step 2: Convert to fraction form
    136,618.64/188,534.55 = 76,193.12/x
  3. Step 3: Cross multiply
    136,618.64x = 188,534.55 × 76,193.12
  4. Step 4: Simplify right side
    136,618.64x = 14,365,035,592.30
  5. Step 5: Solve for x
    x = 14,365,035,592.30/136,618.64
  6. Step 6: Final answer
    x = 105,146.97

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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.