Home / 103,639.90-155,383.05-44,427.10

Finding the Fourth Proportional to 103,639.90, 155,383.05 and 44,427.10

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Solution

The fourth proportional to 103,639.90, 155,383.05 and 44,427.10 is: 66,607.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,639.90 : 155,383.05 = 44,427.10 : x
  2. Step 2: Convert to fraction form
    103,639.90/155,383.05 = 44,427.10/x
  3. Step 3: Cross multiply
    103,639.90x = 155,383.05 × 44,427.10
  4. Step 4: Simplify right side
    103,639.90x = 6,903,218,300.66
  5. Step 5: Solve for x
    x = 6,903,218,300.66/103,639.90
  6. Step 6: Final answer
    x = 66,607.73

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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.