Home / 112,878.60-155,772.68-62,577.60

Finding the Fourth Proportional to 112,878.60, 155,772.68 and 62,577.60

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Solution

The fourth proportional to 112,878.60, 155,772.68 and 62,577.60 is: 86,357.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,878.60 : 155,772.68 = 62,577.60 : x
  2. Step 2: Convert to fraction form
    112,878.60/155,772.68 = 62,577.60/x
  3. Step 3: Cross multiply
    112,878.60x = 155,772.68 × 62,577.60
  4. Step 4: Simplify right side
    112,878.60x = 9,747,880,459.97
  5. Step 5: Solve for x
    x = 9,747,880,459.97/112,878.60
  6. Step 6: Final answer
    x = 86,357.21

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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.