Home / 134,832.03-186,105.20-78,261.63

Finding the Fourth Proportional to 134,832.03, 186,105.20 and 78,261.63

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Solution

The fourth proportional to 134,832.03, 186,105.20 and 78,261.63 is: 108,022.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,832.03 : 186,105.20 = 78,261.63 : x
  2. Step 2: Convert to fraction form
    134,832.03/186,105.20 = 78,261.63/x
  3. Step 3: Cross multiply
    134,832.03x = 186,105.20 × 78,261.63
  4. Step 4: Simplify right side
    134,832.03x = 14,564,895,568.60
  5. Step 5: Solve for x
    x = 14,564,895,568.60/134,832.03
  6. Step 6: Final answer
    x = 108,022.52

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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.