Home / 193,085.29-289,666.95-66,730.15

Finding the Fourth Proportional to 193,085.29, 289,666.95 and 66,730.15

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Solution

The fourth proportional to 193,085.29, 289,666.95 and 66,730.15 is: 100,108.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,085.29 : 289,666.95 = 66,730.15 : x
  2. Step 2: Convert to fraction form
    193,085.29/289,666.95 = 66,730.15/x
  3. Step 3: Cross multiply
    193,085.29x = 289,666.95 × 66,730.15
  4. Step 4: Simplify right side
    193,085.29x = 19,329,519,023.54
  5. Step 5: Solve for x
    x = 19,329,519,023.54/193,085.29
  6. Step 6: Final answer
    x = 100,108.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.