Home / 148,328.04-204,690.66-81,260.52

Finding the Fourth Proportional to 148,328.04, 204,690.66 and 81,260.52

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Solution

The fourth proportional to 148,328.04, 204,690.66 and 81,260.52 is: 112,138.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,328.04 : 204,690.66 = 81,260.52 : x
  2. Step 2: Convert to fraction form
    148,328.04/204,690.66 = 81,260.52/x
  3. Step 3: Cross multiply
    148,328.04x = 204,690.66 × 81,260.52
  4. Step 4: Simplify right side
    148,328.04x = 16,633,269,470.74
  5. Step 5: Solve for x
    x = 16,633,269,470.74/148,328.04
  6. Step 6: Final answer
    x = 112,138.40

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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.