Home / 140,683.28-194,135.27-77,008.77

Finding the Fourth Proportional to 140,683.28, 194,135.27 and 77,008.77

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Solution

The fourth proportional to 140,683.28, 194,135.27 and 77,008.77 is: 106,267.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,683.28 : 194,135.27 = 77,008.77 : x
  2. Step 2: Convert to fraction form
    140,683.28/194,135.27 = 77,008.77/x
  3. Step 3: Cross multiply
    140,683.28x = 194,135.27 × 77,008.77
  4. Step 4: Simplify right side
    140,683.28x = 14,950,117,971.27
  5. Step 5: Solve for x
    x = 14,950,117,971.27/140,683.28
  6. Step 6: Final answer
    x = 106,267.91

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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.