Home / 105,660.08-145,814.50-57,913.44

Finding the Fourth Proportional to 105,660.08, 145,814.50 and 57,913.44

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Solution

The fourth proportional to 105,660.08, 145,814.50 and 57,913.44 is: 79,922.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,660.08 : 145,814.50 = 57,913.44 : x
  2. Step 2: Convert to fraction form
    105,660.08/145,814.50 = 57,913.44/x
  3. Step 3: Cross multiply
    105,660.08x = 145,814.50 × 57,913.44
  4. Step 4: Simplify right side
    105,660.08x = 8,444,619,296.88
  5. Step 5: Solve for x
    x = 8,444,619,296.88/105,660.08
  6. Step 6: Final answer
    x = 79,922.51

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1.5x scale

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.