Home / 131,628.32-181,646.64-71,199.08

Finding the Fourth Proportional to 131,628.32, 181,646.64 and 71,199.08

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Solution

The fourth proportional to 131,628.32, 181,646.64 and 71,199.08 is: 98,254.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,628.32 : 181,646.64 = 71,199.08 : x
  2. Step 2: Convert to fraction form
    131,628.32/181,646.64 = 71,199.08/x
  3. Step 3: Cross multiply
    131,628.32x = 181,646.64 × 71,199.08
  4. Step 4: Simplify right side
    131,628.32x = 12,933,073,653.09
  5. Step 5: Solve for x
    x = 12,933,073,653.09/131,628.32
  6. Step 6: Final answer
    x = 98,254.49

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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.