Home / 186,015.48-278,801.68-129,549.77

Finding the Fourth Proportional to 186,015.48, 278,801.68 and 129,549.77

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Solution

The fourth proportional to 186,015.48, 278,801.68 and 129,549.77 is: 194,170.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,015.48 : 278,801.68 = 129,549.77 : x
  2. Step 2: Convert to fraction form
    186,015.48/278,801.68 = 129,549.77/x
  3. Step 3: Cross multiply
    186,015.48x = 278,801.68 × 129,549.77
  4. Step 4: Simplify right side
    186,015.48x = 36,118,693,519.61
  5. Step 5: Solve for x
    x = 36,118,693,519.61/186,015.48
  6. Step 6: Final answer
    x = 194,170.36

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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.