Home / 140,402.24-193,755.48-83,812.40

Finding the Fourth Proportional to 140,402.24, 193,755.48 and 83,812.40

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Solution

The fourth proportional to 140,402.24, 193,755.48 and 83,812.40 is: 115,661.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,402.24 : 193,755.48 = 83,812.40 : x
  2. Step 2: Convert to fraction form
    140,402.24/193,755.48 = 83,812.40/x
  3. Step 3: Cross multiply
    140,402.24x = 193,755.48 × 83,812.40
  4. Step 4: Simplify right side
    140,402.24x = 16,239,111,791.95
  5. Step 5: Solve for x
    x = 16,239,111,791.95/140,402.24
  6. Step 6: Final answer
    x = 115,661.34

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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.