Home / 134,719.64-185,904.51-74,290.67

Finding the Fourth Proportional to 134,719.64, 185,904.51 and 74,290.67

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Solution

The fourth proportional to 134,719.64, 185,904.51 and 74,290.67 is: 102,516.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,719.64 : 185,904.51 = 74,290.67 : x
  2. Step 2: Convert to fraction form
    134,719.64/185,904.51 = 74,290.67/x
  3. Step 3: Cross multiply
    134,719.64x = 185,904.51 × 74,290.67
  4. Step 4: Simplify right side
    134,719.64x = 13,810,970,603.92
  5. Step 5: Solve for x
    x = 13,810,970,603.92/134,719.64
  6. Step 6: Final answer
    x = 102,516.39

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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.