Home / 105,290.92-145,301.13-57,544.26

Finding the Fourth Proportional to 105,290.92, 145,301.13 and 57,544.26

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Solution

The fourth proportional to 105,290.92, 145,301.13 and 57,544.26 is: 79,410.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,290.92 : 145,301.13 = 57,544.26 : x
  2. Step 2: Convert to fraction form
    105,290.92/145,301.13 = 57,544.26/x
  3. Step 3: Cross multiply
    105,290.92x = 145,301.13 × 57,544.26
  4. Step 4: Simplify right side
    105,290.92x = 8,361,246,003.01
  5. Step 5: Solve for x
    x = 8,361,246,003.01/105,290.92
  6. Step 6: Final answer
    x = 79,410.89

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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.