Home / 102,879,082.53-142,090,964.64-67,753,905.17

Finding the Fourth Proportional to 102,879,082.53, 142,090,964.64 and 67,753,905.17

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Solution

The fourth proportional to 102,879,082.53, 142,090,964.64 and 67,753,905.17 is: 93,577,989.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,879,082.53 : 142,090,964.64 = 67,753,905.17 : x
  2. Step 2: Convert to fraction form
    102,879,082.53/142,090,964.64 = 67,753,905.17/x
  3. Step 3: Cross multiply
    102,879,082.53x = 142,090,964.64 × 67,753,905.17
  4. Step 4: Simplify right side
    102,879,082.53x = 9,627,217,743,021,928
  5. Step 5: Solve for x
    x = 9,627,217,743,021,928/102,879,082.53
  6. Step 6: Final answer
    x = 93,577,989.87

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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.