Home / 105,110.75-145,055.91-57,367.16

Finding the Fourth Proportional to 105,110.75, 145,055.91 and 57,367.16

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Solution

The fourth proportional to 105,110.75, 145,055.91 and 57,367.16 is: 79,168.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,110.75 : 145,055.91 = 57,367.16 : x
  2. Step 2: Convert to fraction form
    105,110.75/145,055.91 = 57,367.16/x
  3. Step 3: Cross multiply
    105,110.75x = 145,055.91 × 57,367.16
  4. Step 4: Simplify right side
    105,110.75x = 8,321,445,597.92
  5. Step 5: Solve for x
    x = 8,321,445,597.92/105,110.75
  6. Step 6: Final answer
    x = 79,168.36

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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.