Home / 113,787.76-170,628.81-66,416.53

Finding the Fourth Proportional to 113,787.76, 170,628.81 and 66,416.53

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Solution

The fourth proportional to 113,787.76, 170,628.81 and 66,416.53 is: 99,593.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,787.76 : 170,628.81 = 66,416.53 : x
  2. Step 2: Convert to fraction form
    113,787.76/170,628.81 = 66,416.53/x
  3. Step 3: Cross multiply
    113,787.76x = 170,628.81 × 66,416.53
  4. Step 4: Simplify right side
    113,787.76x = 11,332,573,478.23
  5. Step 5: Solve for x
    x = 11,332,573,478.23/113,787.76
  6. Step 6: Final answer
    x = 99,593.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.