Home / 134,173.38-185,155.35-76,810.80

Finding the Fourth Proportional to 134,173.38, 185,155.35 and 76,810.80

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Solution

The fourth proportional to 134,173.38, 185,155.35 and 76,810.80 is: 105,996.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,173.38 : 185,155.35 = 76,810.80 : x
  2. Step 2: Convert to fraction form
    134,173.38/185,155.35 = 76,810.80/x
  3. Step 3: Cross multiply
    134,173.38x = 185,155.35 × 76,810.80
  4. Step 4: Simplify right side
    134,173.38x = 14,221,930,557.78
  5. Step 5: Solve for x
    x = 14,221,930,557.78/134,173.38
  6. Step 6: Final answer
    x = 105,996.66

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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.