Home / 103,460.85-142,765.34-58,131.63

Finding the Fourth Proportional to 103,460.85, 142,765.34 and 58,131.63

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Solution

The fourth proportional to 103,460.85, 142,765.34 and 58,131.63 is: 80,215.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,460.85 : 142,765.34 = 58,131.63 : x
  2. Step 2: Convert to fraction form
    103,460.85/142,765.34 = 58,131.63/x
  3. Step 3: Cross multiply
    103,460.85x = 142,765.34 × 58,131.63
  4. Step 4: Simplify right side
    103,460.85x = 8,299,181,631.05
  5. Step 5: Solve for x
    x = 8,299,181,631.05/103,460.85
  6. Step 6: Final answer
    x = 80,215.67

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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.