Home / 140,407.21-193,762.05-76,745.00

Finding the Fourth Proportional to 140,407.21, 193,762.05 and 76,745.00

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Solution

The fourth proportional to 140,407.21, 193,762.05 and 76,745.00 is: 105,908.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,407.21 : 193,762.05 = 76,745.00 : x
  2. Step 2: Convert to fraction form
    140,407.21/193,762.05 = 76,745.00/x
  3. Step 3: Cross multiply
    140,407.21x = 193,762.05 × 76,745.00
  4. Step 4: Simplify right side
    140,407.21x = 14,870,268,723.86
  5. Step 5: Solve for x
    x = 14,870,268,723.86/140,407.21
  6. Step 6: Final answer
    x = 105,908.16

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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.