Home / 149,974.05-206,970.44-86,312.01

Finding the Fourth Proportional to 149,974.05, 206,970.44 and 86,312.01

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Solution

The fourth proportional to 149,974.05, 206,970.44 and 86,312.01 is: 119,114.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,974.05 : 206,970.44 = 86,312.01 : x
  2. Step 2: Convert to fraction form
    149,974.05/206,970.44 = 86,312.01/x
  3. Step 3: Cross multiply
    149,974.05x = 206,970.44 × 86,312.01
  4. Step 4: Simplify right side
    149,974.05x = 17,864,034,255.42
  5. Step 5: Solve for x
    x = 17,864,034,255.42/149,974.05
  6. Step 6: Final answer
    x = 119,114.17

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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.