Home / 148,312.80-222,370.92-81,784.80

Finding the Fourth Proportional to 148,312.80, 222,370.92 and 81,784.80

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Solution

The fourth proportional to 148,312.80, 222,370.92 and 81,784.80 is: 122,623.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,312.80 : 222,370.92 = 81,784.80 : x
  2. Step 2: Convert to fraction form
    148,312.80/222,370.92 = 81,784.80/x
  3. Step 3: Cross multiply
    148,312.80x = 222,370.92 × 81,784.80
  4. Step 4: Simplify right side
    148,312.80x = 18,186,561,218.02
  5. Step 5: Solve for x
    x = 18,186,561,218.02/148,312.80
  6. Step 6: Final answer
    x = 122,623.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.