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Finding the Fourth Proportional to 103,506.40, 155,259.60 and 36,948.70

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Solution

The fourth proportional to 103,506.40, 155,259.60 and 36,948.70 is: 55,423.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,506.40 : 155,259.60 = 36,948.70 : x
  2. Step 2: Convert to fraction form
    103,506.40/155,259.60 = 36,948.70/x
  3. Step 3: Cross multiply
    103,506.40x = 155,259.60 × 36,948.70
  4. Step 4: Simplify right side
    103,506.40x = 5,736,640,382.52
  5. Step 5: Solve for x
    x = 5,736,640,382.52/103,506.40
  6. Step 6: Final answer
    x = 55,423.05

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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.