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Finding the Fourth Proportional to 102,855.77, 153,600.11 and 101,742.37

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Solution

The fourth proportional to 102,855.77, 153,600.11 and 101,742.37 is: 151,937.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,855.77 : 153,600.11 = 101,742.37 : x
  2. Step 2: Convert to fraction form
    102,855.77/153,600.11 = 101,742.37/x
  3. Step 3: Cross multiply
    102,855.77x = 153,600.11 × 101,742.37
  4. Step 4: Simplify right side
    102,855.77x = 15,627,638,330.95
  5. Step 5: Solve for x
    x = 15,627,638,330.95/102,855.77
  6. Step 6: Final answer
    x = 151,937.41

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.