Home / 185,967.36-256,626.68-105,390.16

Finding the Fourth Proportional to 185,967.36, 256,626.68 and 105,390.16

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Solution

The fourth proportional to 185,967.36, 256,626.68 and 105,390.16 is: 145,433.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,967.36 : 256,626.68 = 105,390.16 : x
  2. Step 2: Convert to fraction form
    185,967.36/256,626.68 = 105,390.16/x
  3. Step 3: Cross multiply
    185,967.36x = 256,626.68 × 105,390.16
  4. Step 4: Simplify right side
    185,967.36x = 27,045,926,865.47
  5. Step 5: Solve for x
    x = 27,045,926,865.47/185,967.36
  6. Step 6: Final answer
    x = 145,433.73

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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.