Home / 103,611.60-142,975.82-58,280.55

Finding the Fourth Proportional to 103,611.60, 142,975.82 and 58,280.55

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Solution

The fourth proportional to 103,611.60, 142,975.82 and 58,280.55 is: 80,422.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,611.60 : 142,975.82 = 58,280.55 : x
  2. Step 2: Convert to fraction form
    103,611.60/142,975.82 = 58,280.55/x
  3. Step 3: Cross multiply
    103,611.60x = 142,975.82 × 58,280.55
  4. Step 4: Simplify right side
    103,611.60x = 8,332,709,426.30
  5. Step 5: Solve for x
    x = 8,332,709,426.30/103,611.60
  6. Step 6: Final answer
    x = 80,422.55

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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.