Home / 103,253.25-142,539.54-69,249.30

Finding the Fourth Proportional to 103,253.25, 142,539.54 and 69,249.30

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Solution

The fourth proportional to 103,253.25, 142,539.54 and 69,249.30 is: 95,597.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,253.25 : 142,539.54 = 69,249.30 : x
  2. Step 2: Convert to fraction form
    103,253.25/142,539.54 = 69,249.30/x
  3. Step 3: Cross multiply
    103,253.25x = 142,539.54 × 69,249.30
  4. Step 4: Simplify right side
    103,253.25x = 9,870,763,367.32
  5. Step 5: Solve for x
    x = 9,870,763,367.32/103,253.25
  6. Step 6: Final answer
    x = 95,597.60

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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.