Home / 149,541.36-206,366.24-81,557.12

Finding the Fourth Proportional to 149,541.36, 206,366.24 and 81,557.12

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Solution

The fourth proportional to 149,541.36, 206,366.24 and 81,557.12 is: 112,548.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,541.36 : 206,366.24 = 81,557.12 : x
  2. Step 2: Convert to fraction form
    149,541.36/206,366.24 = 81,557.12/x
  3. Step 3: Cross multiply
    149,541.36x = 206,366.24 × 81,557.12
  4. Step 4: Simplify right side
    149,541.36x = 16,830,636,199.63
  5. Step 5: Solve for x
    x = 16,830,636,199.63/149,541.36
  6. Step 6: Final answer
    x = 112,548.37

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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.