Home / 134,598.12-185,753.64-74,168.78

Finding the Fourth Proportional to 134,598.12, 185,753.64 and 74,168.78

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Solution

The fourth proportional to 134,598.12, 185,753.64 and 74,168.78 is: 102,357.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,598.12 : 185,753.64 = 74,168.78 : x
  2. Step 2: Convert to fraction form
    134,598.12/185,753.64 = 74,168.78/x
  3. Step 3: Cross multiply
    134,598.12x = 185,753.64 × 74,168.78
  4. Step 4: Simplify right side
    134,598.12x = 13,777,119,930.59
  5. Step 5: Solve for x
    x = 13,777,119,930.59/134,598.12
  6. Step 6: Final answer
    x = 102,357.45

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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.