Home / 149,541.53-206,366.67-81,557.28

Finding the Fourth Proportional to 149,541.53, 206,366.67 and 81,557.28

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Solution

The fourth proportional to 149,541.53, 206,366.67 and 81,557.28 is: 112,548.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,541.53 : 206,366.67 = 81,557.28 : x
  2. Step 2: Convert to fraction form
    149,541.53/206,366.67 = 81,557.28/x
  3. Step 3: Cross multiply
    149,541.53x = 206,366.67 × 81,557.28
  4. Step 4: Simplify right side
    149,541.53x = 16,830,704,287.86
  5. Step 5: Solve for x
    x = 16,830,704,287.86/149,541.53
  6. Step 6: Final answer
    x = 112,548.70

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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.