Home / 105,559.25-145,673.35-57,817.05

Finding the Fourth Proportional to 105,559.25, 145,673.35 and 57,817.05

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Solution

The fourth proportional to 105,559.25, 145,673.35 and 57,817.05 is: 79,788.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,559.25 : 145,673.35 = 57,817.05 : x
  2. Step 2: Convert to fraction form
    105,559.25/145,673.35 = 57,817.05/x
  3. Step 3: Cross multiply
    105,559.25x = 145,673.35 × 57,817.05
  4. Step 4: Simplify right side
    105,559.25x = 8,422,403,360.62
  5. Step 5: Solve for x
    x = 8,422,403,360.62/105,559.25
  6. Step 6: Final answer
    x = 79,788.40

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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.