Home / 105,660.48-145,815.08-57,913.82

Finding the Fourth Proportional to 105,660.48, 145,815.08 and 57,913.82

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Solution

The fourth proportional to 105,660.48, 145,815.08 and 57,913.82 is: 79,923.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,660.48 : 145,815.08 = 57,913.82 : x
  2. Step 2: Convert to fraction form
    105,660.48/145,815.08 = 57,913.82/x
  3. Step 3: Cross multiply
    105,660.48x = 145,815.08 × 57,913.82
  4. Step 4: Simplify right side
    105,660.48x = 8,444,707,277.76
  5. Step 5: Solve for x
    x = 8,444,707,277.76/105,660.48
  6. Step 6: Final answer
    x = 79,923.04

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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.