Home / 149,305.20-206,038.08-81,322.96

Finding the Fourth Proportional to 149,305.20, 206,038.08 and 81,322.96

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Solution

The fourth proportional to 149,305.20, 206,038.08 and 81,322.96 is: 112,224.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,305.20 : 206,038.08 = 81,322.96 : x
  2. Step 2: Convert to fraction form
    149,305.20/206,038.08 = 81,322.96/x
  3. Step 3: Cross multiply
    149,305.20x = 206,038.08 × 81,322.96
  4. Step 4: Simplify right side
    149,305.20x = 16,755,626,538.32
  5. Step 5: Solve for x
    x = 16,755,626,538.32/149,305.20
  6. Step 6: Final answer
    x = 112,224.00

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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.