Home / 140,302.48-193,614.24-76,640.56

Finding the Fourth Proportional to 140,302.48, 193,614.24 and 76,640.56

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Solution

The fourth proportional to 140,302.48, 193,614.24 and 76,640.56 is: 105,762.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,302.48 : 193,614.24 = 76,640.56 : x
  2. Step 2: Convert to fraction form
    140,302.48/193,614.24 = 76,640.56/x
  3. Step 3: Cross multiply
    140,302.48x = 193,614.24 × 76,640.56
  4. Step 4: Simplify right side
    140,302.48x = 14,838,703,777.57
  5. Step 5: Solve for x
    x = 14,838,703,777.57/140,302.48
  6. Step 6: Final answer
    x = 105,762.23

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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.