Home / 149,518.88-206,341.02-81,539.57

Finding the Fourth Proportional to 149,518.88, 206,341.02 and 81,539.57

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Solution

The fourth proportional to 149,518.88, 206,341.02 and 81,539.57 is: 112,527.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,518.88 : 206,341.02 = 81,539.57 : x
  2. Step 2: Convert to fraction form
    149,518.88/206,341.02 = 81,539.57/x
  3. Step 3: Cross multiply
    149,518.88x = 206,341.02 × 81,539.57
  4. Step 4: Simplify right side
    149,518.88x = 16,824,957,012.46
  5. Step 5: Solve for x
    x = 16,824,957,012.46/149,518.88
  6. Step 6: Final answer
    x = 112,527.31

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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.