Home / 130,790.22-180,485.19-74,200.38

Finding the Fourth Proportional to 130,790.22, 180,485.19 and 74,200.38

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Solution

The fourth proportional to 130,790.22, 180,485.19 and 74,200.38 is: 102,393.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,790.22 : 180,485.19 = 74,200.38 : x
  2. Step 2: Convert to fraction form
    130,790.22/180,485.19 = 74,200.38/x
  3. Step 3: Cross multiply
    130,790.22x = 180,485.19 × 74,200.38
  4. Step 4: Simplify right side
    130,790.22x = 13,392,069,682.37
  5. Step 5: Solve for x
    x = 13,392,069,682.37/130,790.22
  6. Step 6: Final answer
    x = 102,393.51

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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.