Home / 100,001.10-137,995.88-54,670.67

Finding the Fourth Proportional to 100,001.10, 137,995.88 and 54,670.67

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Solution

The fourth proportional to 100,001.10, 137,995.88 and 54,670.67 is: 75,442.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,001.10 : 137,995.88 = 54,670.67 : x
  2. Step 2: Convert to fraction form
    100,001.10/137,995.88 = 54,670.67/x
  3. Step 3: Cross multiply
    100,001.10x = 137,995.88 × 54,670.67
  4. Step 4: Simplify right side
    100,001.10x = 7,544,327,216.84
  5. Step 5: Solve for x
    x = 7,544,327,216.84/100,001.10
  6. Step 6: Final answer
    x = 75,442.44

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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.