Home / 103,445.20-155,244.60-41,160.40

Finding the Fourth Proportional to 103,445.20, 155,244.60 and 41,160.40

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Solution

The fourth proportional to 103,445.20, 155,244.60 and 41,160.40 is: 61,771.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,445.20 : 155,244.60 = 41,160.40 : x
  2. Step 2: Convert to fraction form
    103,445.20/155,244.60 = 41,160.40/x
  3. Step 3: Cross multiply
    103,445.20x = 155,244.60 × 41,160.40
  4. Step 4: Simplify right side
    103,445.20x = 6,389,929,833.84
  5. Step 5: Solve for x
    x = 6,389,929,833.84/103,445.20
  6. Step 6: Final answer
    x = 61,771.16

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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.