Home / 124,606.64-186,909-31,111.76

Finding the Fourth Proportional to 124,606.64, 186,909 and 31,111.76

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Solution

The fourth proportional to 124,606.64, 186,909 and 31,111.76 is: 46,667.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,606.64 : 186,909 = 31,111.76 : x
  2. Step 2: Convert to fraction form
    124,606.64/186,909 = 31,111.76/x
  3. Step 3: Cross multiply
    124,606.64x = 186,909 × 31,111.76
  4. Step 4: Simplify right side
    124,606.64x = 5,815,067,949.84
  5. Step 5: Solve for x
    x = 5,815,067,949.84/124,606.64
  6. Step 6: Final answer
    x = 46,667.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.