Home / 112,773.24-169,106.90-65,401.80

Finding the Fourth Proportional to 112,773.24, 169,106.90 and 65,401.80

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Solution

The fourth proportional to 112,773.24, 169,106.90 and 65,401.80 is: 98,071.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,773.24 : 169,106.90 = 65,401.80 : x
  2. Step 2: Convert to fraction form
    112,773.24/169,106.90 = 65,401.80/x
  3. Step 3: Cross multiply
    112,773.24x = 169,106.90 × 65,401.80
  4. Step 4: Simplify right side
    112,773.24x = 11,059,895,325.41
  5. Step 5: Solve for x
    x = 11,059,895,325.41/112,773.24
  6. Step 6: Final answer
    x = 98,071.98

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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.