Home / 111,354.10-153,628.38-73,134.35

Finding the Fourth Proportional to 111,354.10, 153,628.38 and 73,134.35

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Solution

The fourth proportional to 111,354.10, 153,628.38 and 73,134.35 is: 100,898.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,354.10 : 153,628.38 = 73,134.35 : x
  2. Step 2: Convert to fraction form
    111,354.10/153,628.38 = 73,134.35/x
  3. Step 3: Cross multiply
    111,354.10x = 153,628.38 × 73,134.35
  4. Step 4: Simplify right side
    111,354.10x = 11,235,511,231.53
  5. Step 5: Solve for x
    x = 11,235,511,231.53/111,354.10
  6. Step 6: Final answer
    x = 100,898.95

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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.