Home / 130,647.22-180,288.06-74,057.38

Finding the Fourth Proportional to 130,647.22, 180,288.06 and 74,057.38

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Solution

The fourth proportional to 130,647.22, 180,288.06 and 74,057.38 is: 102,196.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,647.22 : 180,288.06 = 74,057.38 : x
  2. Step 2: Convert to fraction form
    130,647.22/180,288.06 = 74,057.38/x
  3. Step 3: Cross multiply
    130,647.22x = 180,288.06 × 74,057.38
  4. Step 4: Simplify right side
    130,647.22x = 13,351,661,368.88
  5. Step 5: Solve for x
    x = 13,351,661,368.88/130,647.22
  6. Step 6: Final answer
    x = 102,196.29

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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.