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Finding the Fourth Proportional to 103,533.70, 155,300.55 and 100,617.70

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Solution

The fourth proportional to 103,533.70, 155,300.55 and 100,617.70 is: 150,926.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,533.70 : 155,300.55 = 100,617.70 : x
  2. Step 2: Convert to fraction form
    103,533.70/155,300.55 = 100,617.70/x
  3. Step 3: Cross multiply
    103,533.70x = 155,300.55 × 100,617.70
  4. Step 4: Simplify right side
    103,533.70x = 15,625,984,149.74
  5. Step 5: Solve for x
    x = 15,625,984,149.74/103,533.70
  6. Step 6: Final answer
    x = 150,926.55

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1.5x scale

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.