Home / 103,518.94-142,861.21-58,211.19

Finding the Fourth Proportional to 103,518.94, 142,861.21 and 58,211.19

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Solution

The fourth proportional to 103,518.94, 142,861.21 and 58,211.19 is: 80,334.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,518.94 : 142,861.21 = 58,211.19 : x
  2. Step 2: Convert to fraction form
    103,518.94/142,861.21 = 58,211.19/x
  3. Step 3: Cross multiply
    103,518.94x = 142,861.21 × 58,211.19
  4. Step 4: Simplify right side
    103,518.94x = 8,316,120,033.58
  5. Step 5: Solve for x
    x = 8,316,120,033.58/103,518.94
  6. Step 6: Final answer
    x = 80,334.29

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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.