Home / 103,949.10-143,450.28-56,202.30

Finding the Fourth Proportional to 103,949.10, 143,450.28 and 56,202.30

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Solution

The fourth proportional to 103,949.10, 143,450.28 and 56,202.30 is: 77,559.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,949.10 : 143,450.28 = 56,202.30 : x
  2. Step 2: Convert to fraction form
    103,949.10/143,450.28 = 56,202.30/x
  3. Step 3: Cross multiply
    103,949.10x = 143,450.28 × 56,202.30
  4. Step 4: Simplify right side
    103,949.10x = 8,062,235,671.64
  5. Step 5: Solve for x
    x = 8,062,235,671.64/103,949.10
  6. Step 6: Final answer
    x = 77,559.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.