Home / 134,621.51-185,786.46-77,279.41

Finding the Fourth Proportional to 134,621.51, 185,786.46 and 77,279.41

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Solution

The fourth proportional to 134,621.51, 185,786.46 and 77,279.41 is: 106,650.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,621.51 : 185,786.46 = 77,279.41 : x
  2. Step 2: Convert to fraction form
    134,621.51/185,786.46 = 77,279.41/x
  3. Step 3: Cross multiply
    134,621.51x = 185,786.46 × 77,279.41
  4. Step 4: Simplify right side
    134,621.51x = 14,357,467,085.86
  5. Step 5: Solve for x
    x = 14,357,467,085.86/134,621.51
  6. Step 6: Final answer
    x = 106,650.62

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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.