Home / 103,390.40-155,085.60-33,276.80

Finding the Fourth Proportional to 103,390.40, 155,085.60 and 33,276.80

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Solution

The fourth proportional to 103,390.40, 155,085.60 and 33,276.80 is: 49,915.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,390.40 : 155,085.60 = 33,276.80 : x
  2. Step 2: Convert to fraction form
    103,390.40/155,085.60 = 33,276.80/x
  3. Step 3: Cross multiply
    103,390.40x = 155,085.60 × 33,276.80
  4. Step 4: Simplify right side
    103,390.40x = 5,160,752,494.08
  5. Step 5: Solve for x
    x = 5,160,752,494.08/103,390.40
  6. Step 6: Final answer
    x = 49,915.20

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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.