Home / 180,816.75-249,520.23-100,245.51

Finding the Fourth Proportional to 180,816.75, 249,520.23 and 100,245.51

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Solution

The fourth proportional to 180,816.75, 249,520.23 and 100,245.51 is: 138,334.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,816.75 : 249,520.23 = 100,245.51 : x
  2. Step 2: Convert to fraction form
    180,816.75/249,520.23 = 100,245.51/x
  3. Step 3: Cross multiply
    180,816.75x = 249,520.23 × 100,245.51
  4. Step 4: Simplify right side
    180,816.75x = 25,013,282,711.67
  5. Step 5: Solve for x
    x = 25,013,282,711.67/180,816.75
  6. Step 6: Final answer
    x = 138,334.99

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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.