Home / 134,743.74-185,954.86-77,401.02

Finding the Fourth Proportional to 134,743.74, 185,954.86 and 77,401.02

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Solution

The fourth proportional to 134,743.74, 185,954.86 and 77,401.02 is: 106,818.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,743.74 : 185,954.86 = 77,401.02 : x
  2. Step 2: Convert to fraction form
    134,743.74/185,954.86 = 77,401.02/x
  3. Step 3: Cross multiply
    134,743.74x = 185,954.86 × 77,401.02
  4. Step 4: Simplify right side
    134,743.74x = 14,393,095,837.96
  5. Step 5: Solve for x
    x = 14,393,095,837.96/134,743.74
  6. Step 6: Final answer
    x = 106,818.29

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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.