Home / 142,460.08-213,739.26-53,738.89

Finding the Fourth Proportional to 142,460.08, 213,739.26 and 53,738.89

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Solution

The fourth proportional to 142,460.08, 213,739.26 and 53,738.89 is: 80,626.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,460.08 : 213,739.26 = 53,738.89 : x
  2. Step 2: Convert to fraction form
    142,460.08/213,739.26 = 53,738.89/x
  3. Step 3: Cross multiply
    142,460.08x = 213,739.26 × 53,738.89
  4. Step 4: Simplify right side
    142,460.08x = 11,486,110,581.82
  5. Step 5: Solve for x
    x = 11,486,110,581.82/142,460.08
  6. Step 6: Final answer
    x = 80,626.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.