Home / 103,872.08-143,585.61-92,652.77

Finding the Fourth Proportional to 103,872.08, 143,585.61 and 92,652.77

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Solution

The fourth proportional to 103,872.08, 143,585.61 and 92,652.77 is: 128,076.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,872.08 : 143,585.61 = 92,652.77 : x
  2. Step 2: Convert to fraction form
    103,872.08/143,585.61 = 92,652.77/x
  3. Step 3: Cross multiply
    103,872.08x = 143,585.61 × 92,652.77
  4. Step 4: Simplify right side
    103,872.08x = 13,303,603,780.71
  5. Step 5: Solve for x
    x = 13,303,603,780.71/103,872.08
  6. Step 6: Final answer
    x = 128,076.81

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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.