Home / 148,817.39-205,310.12-84,271.79

Finding the Fourth Proportional to 148,817.39, 205,310.12 and 84,271.79

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Solution

The fourth proportional to 148,817.39, 205,310.12 and 84,271.79 is: 116,262.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,817.39 : 205,310.12 = 84,271.79 : x
  2. Step 2: Convert to fraction form
    148,817.39/205,310.12 = 84,271.79/x
  3. Step 3: Cross multiply
    148,817.39x = 205,310.12 × 84,271.79
  4. Step 4: Simplify right side
    148,817.39x = 17,301,851,409.43
  5. Step 5: Solve for x
    x = 17,301,851,409.43/148,817.39
  6. Step 6: Final answer
    x = 116,262.30

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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.