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Finding the Fourth Proportional to 106,485, 159,754.50 and 39,925.32

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Solution

The fourth proportional to 106,485, 159,754.50 and 39,925.32 is: 59,898.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,485 : 159,754.50 = 39,925.32 : x
  2. Step 2: Convert to fraction form
    106,485/159,754.50 = 39,925.32/x
  3. Step 3: Cross multiply
    106,485x = 159,754.50 × 39,925.32
  4. Step 4: Simplify right side
    106,485x = 6,378,249,533.94
  5. Step 5: Solve for x
    x = 6,378,249,533.94/106,485
  6. Step 6: Final answer
    x = 59,898.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.