Home / 105,582.63-145,704.07-57,837.70

Finding the Fourth Proportional to 105,582.63, 145,704.07 and 57,837.70

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Solution

The fourth proportional to 105,582.63, 145,704.07 and 57,837.70 is: 79,816.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,582.63 : 145,704.07 = 57,837.70 : x
  2. Step 2: Convert to fraction form
    105,582.63/145,704.07 = 57,837.70/x
  3. Step 3: Cross multiply
    105,582.63x = 145,704.07 × 57,837.70
  4. Step 4: Simplify right side
    105,582.63x = 8,427,188,289.44
  5. Step 5: Solve for x
    x = 8,427,188,289.44/105,582.63
  6. Step 6: Final answer
    x = 79,816.05

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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.