Home / 171,021.80-235,856.76-142,436.36

Finding the Fourth Proportional to 171,021.80, 235,856.76 and 142,436.36

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Solution

The fourth proportional to 171,021.80, 235,856.76 and 142,436.36 is: 196,434.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,021.80 : 235,856.76 = 142,436.36 : x
  2. Step 2: Convert to fraction form
    171,021.80/235,856.76 = 142,436.36/x
  3. Step 3: Cross multiply
    171,021.80x = 235,856.76 × 142,436.36
  4. Step 4: Simplify right side
    171,021.80x = 33,594,578,375.79
  5. Step 5: Solve for x
    x = 33,594,578,375.79/171,021.80
  6. Step 6: Final answer
    x = 196,434.48

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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.