Home / 131,645.96-181,670.88-71,216.46

Finding the Fourth Proportional to 131,645.96, 181,670.88 and 71,216.46

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Solution

The fourth proportional to 131,645.96, 181,670.88 and 71,216.46 is: 98,278.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,645.96 : 181,670.88 = 71,216.46 : x
  2. Step 2: Convert to fraction form
    131,645.96/181,670.88 = 71,216.46/x
  3. Step 3: Cross multiply
    131,645.96x = 181,670.88 × 71,216.46
  4. Step 4: Simplify right side
    131,645.96x = 12,937,956,958.68
  5. Step 5: Solve for x
    x = 12,937,956,958.68/131,645.96
  6. Step 6: Final answer
    x = 98,278.42

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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.