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Finding the Fourth Proportional to 133,328.63, 183,993.63 and 72,899.39

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Solution

The fourth proportional to 133,328.63, 183,993.63 and 72,899.39 is: 100,601.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,328.63 : 183,993.63 = 72,899.39 : x
  2. Step 2: Convert to fraction form
    133,328.63/183,993.63 = 72,899.39/x
  3. Step 3: Cross multiply
    133,328.63x = 183,993.63 × 72,899.39
  4. Step 4: Simplify right side
    133,328.63x = 13,413,023,577.50
  5. Step 5: Solve for x
    x = 13,413,023,577.50/133,328.63
  6. Step 6: Final answer
    x = 100,601.22

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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.