Home / 145,280.34-217,920.60-40,107.60

Finding the Fourth Proportional to 145,280.34, 217,920.60 and 40,107.60

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Solution

The fourth proportional to 145,280.34, 217,920.60 and 40,107.60 is: 60,161.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,280.34 : 217,920.60 = 40,107.60 : x
  2. Step 2: Convert to fraction form
    145,280.34/217,920.60 = 40,107.60/x
  3. Step 3: Cross multiply
    145,280.34x = 217,920.60 × 40,107.60
  4. Step 4: Simplify right side
    145,280.34x = 8,740,272,256.56
  5. Step 5: Solve for x
    x = 8,740,272,256.56/145,280.34
  6. Step 6: Final answer
    x = 60,161.42

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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.