Home / 76,156.16-113,689.06-66,194.36

Finding the Fourth Proportional to 76,156.16, 113,689.06 and 66,194.36

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Solution

The fourth proportional to 76,156.16, 113,689.06 and 66,194.36 is: 98,817.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,156.16 : 113,689.06 = 66,194.36 : x
  2. Step 2: Convert to fraction form
    76,156.16/113,689.06 = 66,194.36/x
  3. Step 3: Cross multiply
    76,156.16x = 113,689.06 × 66,194.36
  4. Step 4: Simplify right side
    76,156.16x = 7,525,574,565.70
  5. Step 5: Solve for x
    x = 7,525,574,565.70/76,156.16
  6. Step 6: Final answer
    x = 98,817.67

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.