Home / 104,585.21-144,328.49-56,838.56

Finding the Fourth Proportional to 104,585.21, 144,328.49 and 56,838.56

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Solution

The fourth proportional to 104,585.21, 144,328.49 and 56,838.56 is: 78,437.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,585.21 : 144,328.49 = 56,838.56 : x
  2. Step 2: Convert to fraction form
    104,585.21/144,328.49 = 56,838.56/x
  3. Step 3: Cross multiply
    104,585.21x = 144,328.49 × 56,838.56
  4. Step 4: Simplify right side
    104,585.21x = 8,203,423,615.20
  5. Step 5: Solve for x
    x = 8,203,423,615.20/104,585.21
  6. Step 6: Final answer
    x = 78,437.71

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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.