Home / 140,407.54-193,762.50-76,745.34

Finding the Fourth Proportional to 140,407.54, 193,762.50 and 76,745.34

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Solution

The fourth proportional to 140,407.54, 193,762.50 and 76,745.34 is: 105,908.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,407.54 : 193,762.50 = 76,745.34 : x
  2. Step 2: Convert to fraction form
    140,407.54/193,762.50 = 76,745.34/x
  3. Step 3: Cross multiply
    140,407.54x = 193,762.50 × 76,745.34
  4. Step 4: Simplify right side
    140,407.54x = 14,870,368,941.75
  5. Step 5: Solve for x
    x = 14,870,368,941.75/140,407.54
  6. Step 6: Final answer
    x = 105,908.62

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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.