Home / 112,813.84-155,682.60-62,512.72

Finding the Fourth Proportional to 112,813.84, 155,682.60 and 62,512.72

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Solution

The fourth proportional to 112,813.84, 155,682.60 and 62,512.72 is: 86,267.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,813.84 : 155,682.60 = 62,512.72 : x
  2. Step 2: Convert to fraction form
    112,813.84/155,682.60 = 62,512.72/x
  3. Step 3: Cross multiply
    112,813.84x = 155,682.60 × 62,512.72
  4. Step 4: Simplify right side
    112,813.84x = 9,732,142,782.67
  5. Step 5: Solve for x
    x = 9,732,142,782.67/112,813.84
  6. Step 6: Final answer
    x = 86,267.28

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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.