Home / 130,618.88-180,273.75-79,661.18

Finding the Fourth Proportional to 130,618.88, 180,273.75 and 79,661.18

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Solution

The fourth proportional to 130,618.88, 180,273.75 and 79,661.18 is: 109,944.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,618.88 : 180,273.75 = 79,661.18 : x
  2. Step 2: Convert to fraction form
    130,618.88/180,273.75 = 79,661.18/x
  3. Step 3: Cross multiply
    130,618.88x = 180,273.75 × 79,661.18
  4. Step 4: Simplify right side
    130,618.88x = 14,360,819,648.03
  5. Step 5: Solve for x
    x = 14,360,819,648.03/130,618.88
  6. Step 6: Final answer
    x = 109,944.44

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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.