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Finding the Fourth Proportional to 133,143.17, 183,713.22 and 75,779.10

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Solution

The fourth proportional to 133,143.17, 183,713.22 and 75,779.10 is: 104,561.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,143.17 : 183,713.22 = 75,779.10 : x
  2. Step 2: Convert to fraction form
    133,143.17/183,713.22 = 75,779.10/x
  3. Step 3: Cross multiply
    133,143.17x = 183,713.22 × 75,779.10
  4. Step 4: Simplify right side
    133,143.17x = 13,921,622,469.70
  5. Step 5: Solve for x
    x = 13,921,622,469.70/133,143.17
  6. Step 6: Final answer
    x = 104,561.30

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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.