Home / 124,616.64-186,924-31,121.76

Finding the Fourth Proportional to 124,616.64, 186,924 and 31,121.76

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Solution

The fourth proportional to 124,616.64, 186,924 and 31,121.76 is: 46,682.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,616.64 : 186,924 = 31,121.76 : x
  2. Step 2: Convert to fraction form
    124,616.64/186,924 = 31,121.76/x
  3. Step 3: Cross multiply
    124,616.64x = 186,924 × 31,121.76
  4. Step 4: Simplify right side
    124,616.64x = 5,817,403,866.24
  5. Step 5: Solve for x
    x = 5,817,403,866.24/124,616.64
  6. Step 6: Final answer
    x = 46,682.40

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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.