Home / 149,549.80-206,381.22-81,567.16

Finding the Fourth Proportional to 149,549.80, 206,381.22 and 81,567.16

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Solution

The fourth proportional to 149,549.80, 206,381.22 and 81,567.16 is: 112,564.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,549.80 : 206,381.22 = 81,567.16 : x
  2. Step 2: Convert to fraction form
    149,549.80/206,381.22 = 81,567.16/x
  3. Step 3: Cross multiply
    149,549.80x = 206,381.22 × 81,567.16
  4. Step 4: Simplify right side
    149,549.80x = 16,833,929,992.74
  5. Step 5: Solve for x
    x = 16,833,929,992.74/149,549.80
  6. Step 6: Final answer
    x = 112,564.04

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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.