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Finding the Fourth Proportional to 100,365.89, 150,574.14 and 70,841.39

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Solution

The fourth proportional to 100,365.89, 150,574.14 and 70,841.39 is: 106,279.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,365.89 : 150,574.14 = 70,841.39 : x
  2. Step 2: Convert to fraction form
    100,365.89/150,574.14 = 70,841.39/x
  3. Step 3: Cross multiply
    100,365.89x = 150,574.14 × 70,841.39
  4. Step 4: Simplify right side
    100,365.89x = 10,666,880,622.78
  5. Step 5: Solve for x
    x = 10,666,880,622.78/100,365.89
  6. Step 6: Final answer
    x = 106,279.94

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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.