Home / 105,296.25-145,308.56-57,549.92

Finding the Fourth Proportional to 105,296.25, 145,308.56 and 57,549.92

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Solution

The fourth proportional to 105,296.25, 145,308.56 and 57,549.92 is: 79,418.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,296.25 : 145,308.56 = 57,549.92 : x
  2. Step 2: Convert to fraction form
    105,296.25/145,308.56 = 57,549.92/x
  3. Step 3: Cross multiply
    105,296.25x = 145,308.56 × 57,549.92
  4. Step 4: Simplify right side
    105,296.25x = 8,362,496,078.84
  5. Step 5: Solve for x
    x = 8,362,496,078.84/105,296.25
  6. Step 6: Final answer
    x = 79,418.75

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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.