Home / 212,143.74-292,768.88-131,597.21

Finding the Fourth Proportional to 212,143.74, 292,768.88 and 131,597.21

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Solution

The fourth proportional to 212,143.74, 292,768.88 and 131,597.21 is: 181,610.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,143.74 : 292,768.88 = 131,597.21 : x
  2. Step 2: Convert to fraction form
    212,143.74/292,768.88 = 131,597.21/x
  3. Step 3: Cross multiply
    212,143.74x = 292,768.88 × 131,597.21
  4. Step 4: Simplify right side
    212,143.74x = 38,527,567,782.82
  5. Step 5: Solve for x
    x = 38,527,567,782.82/212,143.74
  6. Step 6: Final answer
    x = 181,610.67

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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.