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Finding the Fourth Proportional to 188,434, 260,039.06 and 103,551.67

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Solution

The fourth proportional to 188,434, 260,039.06 and 103,551.67 is: 142,901.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,434 : 260,039.06 = 103,551.67 : x
  2. Step 2: Convert to fraction form
    188,434/260,039.06 = 103,551.67/x
  3. Step 3: Cross multiply
    188,434x = 260,039.06 × 103,551.67
  4. Step 4: Simplify right side
    188,434x = 26,927,478,928.23
  5. Step 5: Solve for x
    x = 26,927,478,928.23/188,434
  6. Step 6: Final answer
    x = 142,901.38

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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.