Home / 103,611.44-142,983.56-58,289.45

Finding the Fourth Proportional to 103,611.44, 142,983.56 and 58,289.45

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Solution

The fourth proportional to 103,611.44, 142,983.56 and 58,289.45 is: 80,439.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,611.44 : 142,983.56 = 58,289.45 : x
  2. Step 2: Convert to fraction form
    103,611.44/142,983.56 = 58,289.45/x
  3. Step 3: Cross multiply
    103,611.44x = 142,983.56 × 58,289.45
  4. Step 4: Simplify right side
    103,611.44x = 8,334,432,065.08
  5. Step 5: Solve for x
    x = 8,334,432,065.08/103,611.44
  6. Step 6: Final answer
    x = 80,439.31

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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.