Home / 109,439.58-151,151.19-73,567.38

Finding the Fourth Proportional to 109,439.58, 151,151.19 and 73,567.38

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Solution

The fourth proportional to 109,439.58, 151,151.19 and 73,567.38 is: 101,606.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,439.58 : 151,151.19 = 73,567.38 : x
  2. Step 2: Convert to fraction form
    109,439.58/151,151.19 = 73,567.38/x
  3. Step 3: Cross multiply
    109,439.58x = 151,151.19 × 73,567.38
  4. Step 4: Simplify right side
    109,439.58x = 11,119,797,032.18
  5. Step 5: Solve for x
    x = 11,119,797,032.18/109,439.58
  6. Step 6: Final answer
    x = 101,606.72

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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.