Home / 185,405.79-278,135.31-57,332.06

Finding the Fourth Proportional to 185,405.79, 278,135.31 and 57,332.06

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Solution

The fourth proportional to 185,405.79, 278,135.31 and 57,332.06 is: 86,006.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,405.79 : 278,135.31 = 57,332.06 : x
  2. Step 2: Convert to fraction form
    185,405.79/278,135.31 = 57,332.06/x
  3. Step 3: Cross multiply
    185,405.79x = 278,135.31 × 57,332.06
  4. Step 4: Simplify right side
    185,405.79x = 15,946,068,890.36
  5. Step 5: Solve for x
    x = 15,946,068,890.36/185,405.79
  6. Step 6: Final answer
    x = 86,006.32

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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.