Home / 103,861,241.28-143,280,252-67,203,656.64

Finding the Fourth Proportional to 103,861,241.28, 143,280,252 and 67,203,656.64

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Solution

The fourth proportional to 103,861,241.28, 143,280,252 and 67,203,656.64 is: 92,709,818.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,861,241.28 : 143,280,252 = 67,203,656.64 : x
  2. Step 2: Convert to fraction form
    103,861,241.28/143,280,252 = 67,203,656.64/x
  3. Step 3: Cross multiply
    103,861,241.28x = 143,280,252 × 67,203,656.64
  4. Step 4: Simplify right side
    103,861,241.28x = 9,628,956,858,700,674
  5. Step 5: Solve for x
    x = 9,628,956,858,700,674/103,861,241.28
  6. Step 6: Final answer
    x = 92,709,818.79

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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.