Home / 148,679.83-205,181.22-84,149.07

Finding the Fourth Proportional to 148,679.83, 205,181.22 and 84,149.07

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Solution

The fourth proportional to 148,679.83, 205,181.22 and 84,149.07 is: 116,127.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,679.83 : 205,181.22 = 84,149.07 : x
  2. Step 2: Convert to fraction form
    148,679.83/205,181.22 = 84,149.07/x
  3. Step 3: Cross multiply
    148,679.83x = 205,181.22 × 84,149.07
  4. Step 4: Simplify right side
    148,679.83x = 17,265,808,844.47
  5. Step 5: Solve for x
    x = 17,265,808,844.47/148,679.83
  6. Step 6: Final answer
    x = 116,127.45

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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.