Home / 130,830.88-180,499.36-74,209.44

Finding the Fourth Proportional to 130,830.88, 180,499.36 and 74,209.44

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Solution

The fourth proportional to 130,830.88, 180,499.36 and 74,209.44 is: 102,382.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,830.88 : 180,499.36 = 74,209.44 : x
  2. Step 2: Convert to fraction form
    130,830.88/180,499.36 = 74,209.44/x
  3. Step 3: Cross multiply
    130,830.88x = 180,499.36 × 74,209.44
  4. Step 4: Simplify right side
    130,830.88x = 13,394,756,425.96
  5. Step 5: Solve for x
    x = 13,394,756,425.96/130,830.88
  6. Step 6: Final answer
    x = 102,382.22

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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.