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Finding the Fourth Proportional to 150,890.68, 208,151.06 and 102,495.10

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Solution

The fourth proportional to 150,890.68, 208,151.06 and 102,495.10 is: 141,390.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,890.68 : 208,151.06 = 102,495.10 : x
  2. Step 2: Convert to fraction form
    150,890.68/208,151.06 = 102,495.10/x
  3. Step 3: Cross multiply
    150,890.68x = 208,151.06 × 102,495.10
  4. Step 4: Simplify right side
    150,890.68x = 21,334,463,709.81
  5. Step 5: Solve for x
    x = 21,334,463,709.81/150,890.68
  6. Step 6: Final answer
    x = 141,390.20

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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.