Home / 136,670.20-188,529.06-80,070.64

Finding the Fourth Proportional to 136,670.20, 188,529.06 and 80,070.64

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Solution

The fourth proportional to 136,670.20, 188,529.06 and 80,070.64 is: 110,453.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,670.20 : 188,529.06 = 80,070.64 : x
  2. Step 2: Convert to fraction form
    136,670.20/188,529.06 = 80,070.64/x
  3. Step 3: Cross multiply
    136,670.20x = 188,529.06 × 80,070.64
  4. Step 4: Simplify right side
    136,670.20x = 15,095,642,492.80
  5. Step 5: Solve for x
    x = 15,095,642,492.80/136,670.20
  6. Step 6: Final answer
    x = 110,453.07

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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.