Home / 136,602.42-188,499.87-76,168.32

Finding the Fourth Proportional to 136,602.42, 188,499.87 and 76,168.32

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Solution

The fourth proportional to 136,602.42, 188,499.87 and 76,168.32 is: 105,105.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,602.42 : 188,499.87 = 76,168.32 : x
  2. Step 2: Convert to fraction form
    136,602.42/188,499.87 = 76,168.32/x
  3. Step 3: Cross multiply
    136,602.42x = 188,499.87 × 76,168.32
  4. Step 4: Simplify right side
    136,602.42x = 14,357,718,418.12
  5. Step 5: Solve for x
    x = 14,357,718,418.12/136,602.42
  6. Step 6: Final answer
    x = 105,105.89

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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.