Home / 136,596.23-188,505.12-75,349.45

Finding the Fourth Proportional to 136,596.23, 188,505.12 and 75,349.45

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Solution

The fourth proportional to 136,596.23, 188,505.12 and 75,349.45 is: 103,983.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,596.23 : 188,505.12 = 75,349.45 : x
  2. Step 2: Convert to fraction form
    136,596.23/188,505.12 = 75,349.45/x
  3. Step 3: Cross multiply
    136,596.23x = 188,505.12 × 75,349.45
  4. Step 4: Simplify right side
    136,596.23x = 14,203,757,114.18
  5. Step 5: Solve for x
    x = 14,203,757,114.18/136,596.23
  6. Step 6: Final answer
    x = 103,983.52

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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.