Home / 103,194.63-142,400.30-57,255.75

Finding the Fourth Proportional to 103,194.63, 142,400.30 and 57,255.75

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Solution

The fourth proportional to 103,194.63, 142,400.30 and 57,255.75 is: 79,008.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,194.63 : 142,400.30 = 57,255.75 : x
  2. Step 2: Convert to fraction form
    103,194.63/142,400.30 = 57,255.75/x
  3. Step 3: Cross multiply
    103,194.63x = 142,400.30 × 57,255.75
  4. Step 4: Simplify right side
    103,194.63x = 8,153,235,690.45
  5. Step 5: Solve for x
    x = 8,153,235,690.45/103,194.63
  6. Step 6: Final answer
    x = 79,008.33

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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.