Home / 113,868.84-157,137.21-62,880.30

Finding the Fourth Proportional to 113,868.84, 157,137.21 and 62,880.30

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Solution

The fourth proportional to 113,868.84, 157,137.21 and 62,880.30 is: 86,773.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,868.84 : 157,137.21 = 62,880.30 : x
  2. Step 2: Convert to fraction form
    113,868.84/157,137.21 = 62,880.30/x
  3. Step 3: Cross multiply
    113,868.84x = 157,137.21 × 62,880.30
  4. Step 4: Simplify right side
    113,868.84x = 9,880,834,198.72
  5. Step 5: Solve for x
    x = 9,880,834,198.72/113,868.84
  6. Step 6: Final answer
    x = 86,773.82

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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.