Home / 105,660.64-145,815.42-57,913.98

Finding the Fourth Proportional to 105,660.64, 145,815.42 and 57,913.98

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Solution

The fourth proportional to 105,660.64, 145,815.42 and 57,913.98 is: 79,923.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,660.64 : 145,815.42 = 57,913.98 : x
  2. Step 2: Convert to fraction form
    105,660.64/145,815.42 = 57,913.98/x
  3. Step 3: Cross multiply
    105,660.64x = 145,815.42 × 57,913.98
  4. Step 4: Simplify right side
    105,660.64x = 8,444,751,317.57
  5. Step 5: Solve for x
    x = 8,444,751,317.57/105,660.64
  6. Step 6: Final answer
    x = 79,923.34

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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.