Home / 134,464.75-185,612.12-105,709.39

Finding the Fourth Proportional to 134,464.75, 185,612.12 and 105,709.39

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Solution

The fourth proportional to 134,464.75, 185,612.12 and 105,709.39 is: 145,918.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,464.75 : 185,612.12 = 105,709.39 : x
  2. Step 2: Convert to fraction form
    134,464.75/185,612.12 = 105,709.39/x
  3. Step 3: Cross multiply
    134,464.75x = 185,612.12 × 105,709.39
  4. Step 4: Simplify right side
    134,464.75x = 19,620,943,981.81
  5. Step 5: Solve for x
    x = 19,620,943,981.81/134,464.75
  6. Step 6: Final answer
    x = 145,918.87

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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.