Home / 75,929.25-114,139.80-70,450.83

Finding the Fourth Proportional to 75,929.25, 114,139.80 and 70,450.83

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Solution

The fourth proportional to 75,929.25, 114,139.80 and 70,450.83 is: 105,904.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,929.25 : 114,139.80 = 70,450.83 : x
  2. Step 2: Convert to fraction form
    75,929.25/114,139.80 = 70,450.83/x
  3. Step 3: Cross multiply
    75,929.25x = 114,139.80 × 70,450.83
  4. Step 4: Simplify right side
    75,929.25x = 8,041,243,646.03
  5. Step 5: Solve for x
    x = 8,041,243,646.03/75,929.25
  6. Step 6: Final answer
    x = 105,904.43

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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.