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Finding the Fourth Proportional to 131,000.88, 180,794.88 and 74,415.36

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Solution

The fourth proportional to 131,000.88, 180,794.88 and 74,415.36 is: 102,700.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,000.88 : 180,794.88 = 74,415.36 : x
  2. Step 2: Convert to fraction form
    131,000.88/180,794.88 = 74,415.36/x
  3. Step 3: Cross multiply
    131,000.88x = 180,794.88 × 74,415.36
  4. Step 4: Simplify right side
    131,000.88x = 13,453,916,081.36
  5. Step 5: Solve for x
    x = 13,453,916,081.36/131,000.88
  6. Step 6: Final answer
    x = 102,700.96

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1.5x scale

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.