Home / 180,556.11-249,143.00-99,981.57

Finding the Fourth Proportional to 180,556.11, 249,143.00 and 99,981.57

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Solution

The fourth proportional to 180,556.11, 249,143.00 and 99,981.57 is: 137,961.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,556.11 : 249,143.00 = 99,981.57 : x
  2. Step 2: Convert to fraction form
    180,556.11/249,143.00 = 99,981.57/x
  3. Step 3: Cross multiply
    180,556.11x = 249,143.00 × 99,981.57
  4. Step 4: Simplify right side
    180,556.11x = 24,909,706,736.35
  5. Step 5: Solve for x
    x = 24,909,706,736.35/180,556.11
  6. Step 6: Final answer
    x = 137,961.03

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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.