Home / 103,730.22-143,146.34-58,412.67

Finding the Fourth Proportional to 103,730.22, 143,146.34 and 58,412.67

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Solution

The fourth proportional to 103,730.22, 143,146.34 and 58,412.67 is: 80,608.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,730.22 : 143,146.34 = 58,412.67 : x
  2. Step 2: Convert to fraction form
    103,730.22/143,146.34 = 58,412.67/x
  3. Step 3: Cross multiply
    103,730.22x = 143,146.34 × 58,412.67
  4. Step 4: Simplify right side
    103,730.22x = 8,361,559,628.06
  5. Step 5: Solve for x
    x = 8,361,559,628.06/103,730.22
  6. Step 6: Final answer
    x = 80,608.71

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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.