Home / 134,720.64-185,905.89-74,291.67

Finding the Fourth Proportional to 134,720.64, 185,905.89 and 74,291.67

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Solution

The fourth proportional to 134,720.64, 185,905.89 and 74,291.67 is: 102,517.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,720.64 : 185,905.89 = 74,291.67 : x
  2. Step 2: Convert to fraction form
    134,720.64/185,905.89 = 74,291.67/x
  3. Step 3: Cross multiply
    134,720.64x = 185,905.89 × 74,291.67
  4. Step 4: Simplify right side
    134,720.64x = 13,811,259,030.94
  5. Step 5: Solve for x
    x = 13,811,259,030.94/134,720.64
  6. Step 6: Final answer
    x = 102,517.77

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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.