Home / 239,148.05-330,039.26-131,718.05

Finding the Fourth Proportional to 239,148.05, 330,039.26 and 131,718.05

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Solution

The fourth proportional to 239,148.05, 330,039.26 and 131,718.05 is: 181,779.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,148.05 : 330,039.26 = 131,718.05 : x
  2. Step 2: Convert to fraction form
    239,148.05/330,039.26 = 131,718.05/x
  3. Step 3: Cross multiply
    239,148.05x = 330,039.26 × 131,718.05
  4. Step 4: Simplify right side
    239,148.05x = 43,472,127,173.45
  5. Step 5: Solve for x
    x = 43,472,127,173.45/239,148.05
  6. Step 6: Final answer
    x = 181,779.15

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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.