Home / 140,135.48-193,391.04-76,477.36

Finding the Fourth Proportional to 140,135.48, 193,391.04 and 76,477.36

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Solution

The fourth proportional to 140,135.48, 193,391.04 and 76,477.36 is: 105,540.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,135.48 : 193,391.04 = 76,477.36 : x
  2. Step 2: Convert to fraction form
    140,135.48/193,391.04 = 76,477.36/x
  3. Step 3: Cross multiply
    140,135.48x = 193,391.04 × 76,477.36
  4. Step 4: Simplify right side
    140,135.48x = 14,790,036,186.85
  5. Step 5: Solve for x
    x = 14,790,036,186.85/140,135.48
  6. Step 6: Final answer
    x = 105,540.98

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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.