Home / 105,650.10-145,800.83-57,903.44

Finding the Fourth Proportional to 105,650.10, 145,800.83 and 57,903.44

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Solution

The fourth proportional to 105,650.10, 145,800.83 and 57,903.44 is: 79,908.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,650.10 : 145,800.83 = 57,903.44 : x
  2. Step 2: Convert to fraction form
    105,650.10/145,800.83 = 57,903.44/x
  3. Step 3: Cross multiply
    105,650.10x = 145,800.83 × 57,903.44
  4. Step 4: Simplify right side
    105,650.10x = 8,442,369,027.61
  5. Step 5: Solve for x
    x = 8,442,369,027.61/105,650.10
  6. Step 6: Final answer
    x = 79,908.77

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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.