Home / 186,918.34-278,947.09-166,972.90

Finding the Fourth Proportional to 186,918.34, 278,947.09 and 166,972.90

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Solution

The fourth proportional to 186,918.34, 278,947.09 and 166,972.90 is: 249,181.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,918.34 : 278,947.09 = 166,972.90 : x
  2. Step 2: Convert to fraction form
    186,918.34/278,947.09 = 166,972.90/x
  3. Step 3: Cross multiply
    186,918.34x = 278,947.09 × 166,972.90
  4. Step 4: Simplify right side
    186,918.34x = 46,576,604,563.86
  5. Step 5: Solve for x
    x = 46,576,604,563.86/186,918.34
  6. Step 6: Final answer
    x = 249,181.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.