Home / 83,445.24-124,423.48-74,172.36

Finding the Fourth Proportional to 83,445.24, 124,423.48 and 74,172.36

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Solution

The fourth proportional to 83,445.24, 124,423.48 and 74,172.36 is: 110,596.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,445.24 : 124,423.48 = 74,172.36 : x
  2. Step 2: Convert to fraction form
    83,445.24/124,423.48 = 74,172.36/x
  3. Step 3: Cross multiply
    83,445.24x = 124,423.48 × 74,172.36
  4. Step 4: Simplify right side
    83,445.24x = 9,228,783,151.01
  5. Step 5: Solve for x
    x = 9,228,783,151.01/83,445.24
  6. Step 6: Final answer
    x = 110,596.88

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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.