Home / 117,623.20-176,434.80-65,135.20

Finding the Fourth Proportional to 117,623.20, 176,434.80 and 65,135.20

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Solution

The fourth proportional to 117,623.20, 176,434.80 and 65,135.20 is: 97,702.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,623.20 : 176,434.80 = 65,135.20 : x
  2. Step 2: Convert to fraction form
    117,623.20/176,434.80 = 65,135.20/x
  3. Step 3: Cross multiply
    117,623.20x = 176,434.80 × 65,135.20
  4. Step 4: Simplify right side
    117,623.20x = 11,492,115,984.96
  5. Step 5: Solve for x
    x = 11,492,115,984.96/117,623.20
  6. Step 6: Final answer
    x = 97,702.80

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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.