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Finding the Fourth Proportional to 107,376.60, 160,815.67 and 103,640.02

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Solution

The fourth proportional to 107,376.60, 160,815.67 and 103,640.02 is: 155,219.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,376.60 : 160,815.67 = 103,640.02 : x
  2. Step 2: Convert to fraction form
    107,376.60/160,815.67 = 103,640.02/x
  3. Step 3: Cross multiply
    107,376.60x = 160,815.67 × 103,640.02
  4. Step 4: Simplify right side
    107,376.60x = 16,666,939,255.11
  5. Step 5: Solve for x
    x = 16,666,939,255.11/107,376.60
  6. Step 6: Final answer
    x = 155,219.47

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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.