Home / 105,367.08-145,406.57-57,620.46

Finding the Fourth Proportional to 105,367.08, 145,406.57 and 57,620.46

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Solution

The fourth proportional to 105,367.08, 145,406.57 and 57,620.46 is: 79,516.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,367.08 : 145,406.57 = 57,620.46 : x
  2. Step 2: Convert to fraction form
    105,367.08/145,406.57 = 57,620.46/x
  3. Step 3: Cross multiply
    105,367.08x = 145,406.57 × 57,620.46
  4. Step 4: Simplify right side
    105,367.08x = 8,378,393,162.32
  5. Step 5: Solve for x
    x = 8,378,393,162.32/105,367.08
  6. Step 6: Final answer
    x = 79,516.23

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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.