Home / 130,164.68-179,625.12-72,805.34

Finding the Fourth Proportional to 130,164.68, 179,625.12 and 72,805.34

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Solution

The fourth proportional to 130,164.68, 179,625.12 and 72,805.34 is: 100,470.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,164.68 : 179,625.12 = 72,805.34 : x
  2. Step 2: Convert to fraction form
    130,164.68/179,625.12 = 72,805.34/x
  3. Step 3: Cross multiply
    130,164.68x = 179,625.12 × 72,805.34
  4. Step 4: Simplify right side
    130,164.68x = 13,077,667,934.14
  5. Step 5: Solve for x
    x = 13,077,667,934.14/130,164.68
  6. Step 6: Final answer
    x = 100,470.17

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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.