Home / 103,774.77-143,219.97-63,515.34

Finding the Fourth Proportional to 103,774.77, 143,219.97 and 63,515.34

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Solution

The fourth proportional to 103,774.77, 143,219.97 and 63,515.34 is: 87,657.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,774.77 : 143,219.97 = 63,515.34 : x
  2. Step 2: Convert to fraction form
    103,774.77/143,219.97 = 63,515.34/x
  3. Step 3: Cross multiply
    103,774.77x = 143,219.97 × 63,515.34
  4. Step 4: Simplify right side
    103,774.77x = 9,096,665,089.34
  5. Step 5: Solve for x
    x = 9,096,665,089.34/103,774.77
  6. Step 6: Final answer
    x = 87,657.77

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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.