Home / 134,678.30-185,877.99-81,017.55

Finding the Fourth Proportional to 134,678.30, 185,877.99 and 81,017.55

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Solution

The fourth proportional to 134,678.30, 185,877.99 and 81,017.55 is: 111,817.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,678.30 : 185,877.99 = 81,017.55 : x
  2. Step 2: Convert to fraction form
    134,678.30/185,877.99 = 81,017.55/x
  3. Step 3: Cross multiply
    134,678.30x = 185,877.99 × 81,017.55
  4. Step 4: Simplify right side
    134,678.30x = 15,059,379,348.72
  5. Step 5: Solve for x
    x = 15,059,379,348.72/134,678.30
  6. Step 6: Final answer
    x = 111,817.42

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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.