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Finding the Fourth Proportional to 100,570.47, 150,907.95 and 40,613.69

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Solution

The fourth proportional to 100,570.47, 150,907.95 and 40,613.69 is: 60,941.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,570.47 : 150,907.95 = 40,613.69 : x
  2. Step 2: Convert to fraction form
    100,570.47/150,907.95 = 40,613.69/x
  3. Step 3: Cross multiply
    100,570.47x = 150,907.95 × 40,613.69
  4. Step 4: Simplify right side
    100,570.47x = 6,128,927,945.30
  5. Step 5: Solve for x
    x = 6,128,927,945.30/100,570.47
  6. Step 6: Final answer
    x = 60,941.63

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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.