Home / 145,969.20-218,937.60-40,798.80

Finding the Fourth Proportional to 145,969.20, 218,937.60 and 40,798.80

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Solution

The fourth proportional to 145,969.20, 218,937.60 and 40,798.80 is: 61,193.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,969.20 : 218,937.60 = 40,798.80 : x
  2. Step 2: Convert to fraction form
    145,969.20/218,937.60 = 40,798.80/x
  3. Step 3: Cross multiply
    145,969.20x = 218,937.60 × 40,798.80
  4. Step 4: Simplify right side
    145,969.20x = 8,932,391,354.88
  5. Step 5: Solve for x
    x = 8,932,391,354.88/145,969.20
  6. Step 6: Final answer
    x = 61,193.67

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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.