Home / 180,811.16-249,519.12-109,177.16

Finding the Fourth Proportional to 180,811.16, 249,519.12 and 109,177.16

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Solution

The fourth proportional to 180,811.16, 249,519.12 and 109,177.16 is: 150,664.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,811.16 : 249,519.12 = 109,177.16 : x
  2. Step 2: Convert to fraction form
    180,811.16/249,519.12 = 109,177.16/x
  3. Step 3: Cross multiply
    180,811.16x = 249,519.12 × 109,177.16
  4. Step 4: Simplify right side
    180,811.16x = 27,241,788,887.30
  5. Step 5: Solve for x
    x = 27,241,788,887.30/180,811.16
  6. Step 6: Final answer
    x = 150,664.31

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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.