Home / 115,017.26-158,786.07-80,667.47

Finding the Fourth Proportional to 115,017.26, 158,786.07 and 80,667.47

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Solution

The fourth proportional to 115,017.26, 158,786.07 and 80,667.47 is: 111,364.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,017.26 : 158,786.07 = 80,667.47 : x
  2. Step 2: Convert to fraction form
    115,017.26/158,786.07 = 80,667.47/x
  3. Step 3: Cross multiply
    115,017.26x = 158,786.07 × 80,667.47
  4. Step 4: Simplify right side
    115,017.26x = 12,808,869,744.21
  5. Step 5: Solve for x
    x = 12,808,869,744.21/115,017.26
  6. Step 6: Final answer
    x = 111,364.77

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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.