Home / 104,463.46-144,155.64-56,715.78

Finding the Fourth Proportional to 104,463.46, 144,155.64 and 56,715.78

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Solution

The fourth proportional to 104,463.46, 144,155.64 and 56,715.78 is: 78,265.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,463.46 : 144,155.64 = 56,715.78 : x
  2. Step 2: Convert to fraction form
    104,463.46/144,155.64 = 56,715.78/x
  3. Step 3: Cross multiply
    104,463.46x = 144,155.64 × 56,715.78
  4. Step 4: Simplify right side
    104,463.46x = 8,175,899,564.00
  5. Step 5: Solve for x
    x = 8,175,899,564.00/104,463.46
  6. Step 6: Final answer
    x = 78,265.64

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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.