Home / 156,966.09-235,317.75-72,786.33

Finding the Fourth Proportional to 156,966.09, 235,317.75 and 72,786.33

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Solution

The fourth proportional to 156,966.09, 235,317.75 and 72,786.33 is: 109,118.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,966.09 : 235,317.75 = 72,786.33 : x
  2. Step 2: Convert to fraction form
    156,966.09/235,317.75 = 72,786.33/x
  3. Step 3: Cross multiply
    156,966.09x = 235,317.75 × 72,786.33
  4. Step 4: Simplify right side
    156,966.09x = 17,127,915,406.36
  5. Step 5: Solve for x
    x = 17,127,915,406.36/156,966.09
  6. Step 6: Final answer
    x = 109,118.57

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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.