Home / 140,565.85-193,980.63-76,903.50

Finding the Fourth Proportional to 140,565.85, 193,980.63 and 76,903.50

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Solution

The fourth proportional to 140,565.85, 193,980.63 and 76,903.50 is: 106,126.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,565.85 : 193,980.63 = 76,903.50 : x
  2. Step 2: Convert to fraction form
    140,565.85/193,980.63 = 76,903.50/x
  3. Step 3: Cross multiply
    140,565.85x = 193,980.63 × 76,903.50
  4. Step 4: Simplify right side
    140,565.85x = 14,917,789,379.21
  5. Step 5: Solve for x
    x = 14,917,789,379.21/140,565.85
  6. Step 6: Final answer
    x = 106,126.70

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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.