Home / 140,136.48-193,392.42-76,478.37

Finding the Fourth Proportional to 140,136.48, 193,392.42 and 76,478.37

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Solution

The fourth proportional to 140,136.48, 193,392.42 and 76,478.37 is: 105,542.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,136.48 : 193,392.42 = 76,478.37 : x
  2. Step 2: Convert to fraction form
    140,136.48/193,392.42 = 76,478.37/x
  3. Step 3: Cross multiply
    140,136.48x = 193,392.42 × 76,478.37
  4. Step 4: Simplify right side
    140,136.48x = 14,790,337,051.96
  5. Step 5: Solve for x
    x = 14,790,337,051.96/140,136.48
  6. Step 6: Final answer
    x = 105,542.38

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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.