Home / 142,437.96-213,786.54-75,934.80

Finding the Fourth Proportional to 142,437.96, 213,786.54 and 75,934.80

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Solution

The fourth proportional to 142,437.96, 213,786.54 and 75,934.80 is: 113,971.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,437.96 : 213,786.54 = 75,934.80 : x
  2. Step 2: Convert to fraction form
    142,437.96/213,786.54 = 75,934.80/x
  3. Step 3: Cross multiply
    142,437.96x = 213,786.54 × 75,934.80
  4. Step 4: Simplify right side
    142,437.96x = 16,233,838,157.59
  5. Step 5: Solve for x
    x = 16,233,838,157.59/142,437.96
  6. Step 6: Final answer
    x = 113,971.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.