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Finding the Fourth Proportional to 145,880.20, 218,820.30 and 82,894.60

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Solution

The fourth proportional to 145,880.20, 218,820.30 and 82,894.60 is: 124,341.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,880.20 : 218,820.30 = 82,894.60 : x
  2. Step 2: Convert to fraction form
    145,880.20/218,820.30 = 82,894.60/x
  3. Step 3: Cross multiply
    145,880.20x = 218,820.30 × 82,894.60
  4. Step 4: Simplify right side
    145,880.20x = 18,139,021,240.38
  5. Step 5: Solve for x
    x = 18,139,021,240.38/145,880.20
  6. Step 6: Final answer
    x = 124,341.90

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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.