Home / 104,185.45-143,775.57-56,438.74

Finding the Fourth Proportional to 104,185.45, 143,775.57 and 56,438.74

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Solution

The fourth proportional to 104,185.45, 143,775.57 and 56,438.74 is: 77,885.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,185.45 : 143,775.57 = 56,438.74 : x
  2. Step 2: Convert to fraction form
    104,185.45/143,775.57 = 56,438.74/x
  3. Step 3: Cross multiply
    104,185.45x = 143,775.57 × 56,438.74
  4. Step 4: Simplify right side
    104,185.45x = 8,114,512,013.58
  5. Step 5: Solve for x
    x = 8,114,512,013.58/104,185.45
  6. Step 6: Final answer
    x = 77,885.27

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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.