Home / 134,570.63-185,706.45-80,854.28

Finding the Fourth Proportional to 134,570.63, 185,706.45 and 80,854.28

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Solution

The fourth proportional to 134,570.63, 185,706.45 and 80,854.28 is: 111,578.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,570.63 : 185,706.45 = 80,854.28 : x
  2. Step 2: Convert to fraction form
    134,570.63/185,706.45 = 80,854.28/x
  3. Step 3: Cross multiply
    134,570.63x = 185,706.45 × 80,854.28
  4. Step 4: Simplify right side
    134,570.63x = 15,015,161,306.11
  5. Step 5: Solve for x
    x = 15,015,161,306.11/134,570.63
  6. Step 6: Final answer
    x = 111,578.29

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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.