Home / 103,639.40-155,382.30-44,426.60

Finding the Fourth Proportional to 103,639.40, 155,382.30 and 44,426.60

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Solution

The fourth proportional to 103,639.40, 155,382.30 and 44,426.60 is: 66,606.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,639.40 : 155,382.30 = 44,426.60 : x
  2. Step 2: Convert to fraction form
    103,639.40/155,382.30 = 44,426.60/x
  3. Step 3: Cross multiply
    103,639.40x = 155,382.30 × 44,426.60
  4. Step 4: Simplify right side
    103,639.40x = 6,903,107,289.18
  5. Step 5: Solve for x
    x = 6,903,107,289.18/103,639.40
  6. Step 6: Final answer
    x = 66,606.98

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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.