Home / 88,199.70-121,715.10-47,913.14

Finding the Fourth Proportional to 88,199.70, 121,715.10 and 47,913.14

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Solution

The fourth proportional to 88,199.70, 121,715.10 and 47,913.14 is: 66,119.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,199.70 : 121,715.10 = 47,913.14 : x
  2. Step 2: Convert to fraction form
    88,199.70/121,715.10 = 47,913.14/x
  3. Step 3: Cross multiply
    88,199.70x = 121,715.10 × 47,913.14
  4. Step 4: Simplify right side
    88,199.70x = 5,831,752,017.84
  5. Step 5: Solve for x
    x = 5,831,752,017.84/88,199.70
  6. Step 6: Final answer
    x = 66,119.86

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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.