Home / 180,772.45-249,465.55-99,100.56

Finding the Fourth Proportional to 180,772.45, 249,465.55 and 99,100.56

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Solution

The fourth proportional to 180,772.45, 249,465.55 and 99,100.56 is: 136,758.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,772.45 : 249,465.55 = 99,100.56 : x
  2. Step 2: Convert to fraction form
    180,772.45/249,465.55 = 99,100.56/x
  3. Step 3: Cross multiply
    180,772.45x = 249,465.55 × 99,100.56
  4. Step 4: Simplify right side
    180,772.45x = 24,722,176,579.27
  5. Step 5: Solve for x
    x = 24,722,176,579.27/180,772.45
  6. Step 6: Final answer
    x = 136,758.54

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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.