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Finding the Fourth Proportional to 103,367.20, 155,050.80 and 101,984.80

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Solution

The fourth proportional to 103,367.20, 155,050.80 and 101,984.80 is: 152,977.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,367.20 : 155,050.80 = 101,984.80 : x
  2. Step 2: Convert to fraction form
    103,367.20/155,050.80 = 101,984.80/x
  3. Step 3: Cross multiply
    103,367.20x = 155,050.80 × 101,984.80
  4. Step 4: Simplify right side
    103,367.20x = 15,812,824,827.84
  5. Step 5: Solve for x
    x = 15,812,824,827.84/103,367.20
  6. Step 6: Final answer
    x = 152,977.20

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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.