Home / 130,373.49-179,917.97-85,080.45

Finding the Fourth Proportional to 130,373.49, 179,917.97 and 85,080.45

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Solution

The fourth proportional to 130,373.49, 179,917.97 and 85,080.45 is: 117,412.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,373.49 : 179,917.97 = 85,080.45 : x
  2. Step 2: Convert to fraction form
    130,373.49/179,917.97 = 85,080.45/x
  3. Step 3: Cross multiply
    130,373.49x = 179,917.97 × 85,080.45
  4. Step 4: Simplify right side
    130,373.49x = 15,307,501,850.69
  5. Step 5: Solve for x
    x = 15,307,501,850.69/130,373.49
  6. Step 6: Final answer
    x = 117,412.69

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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.