Home / 103,497.36-142,742.82-69,495.60

Finding the Fourth Proportional to 103,497.36, 142,742.82 and 69,495.60

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Solution

The fourth proportional to 103,497.36, 142,742.82 and 69,495.60 is: 95,847.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,497.36 : 142,742.82 = 69,495.60 : x
  2. Step 2: Convert to fraction form
    103,497.36/142,742.82 = 69,495.60/x
  3. Step 3: Cross multiply
    103,497.36x = 142,742.82 × 69,495.60
  4. Step 4: Simplify right side
    103,497.36x = 9,919,997,921.59
  5. Step 5: Solve for x
    x = 9,919,997,921.59/103,497.36
  6. Step 6: Final answer
    x = 95,847.84

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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.