Home / 111,400.74-165,943.53-105,364.62

Finding the Fourth Proportional to 111,400.74, 165,943.53 and 105,364.62

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Solution

The fourth proportional to 111,400.74, 165,943.53 and 105,364.62 is: 156,952.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,400.74 : 165,943.53 = 105,364.62 : x
  2. Step 2: Convert to fraction form
    111,400.74/165,943.53 = 105,364.62/x
  3. Step 3: Cross multiply
    111,400.74x = 165,943.53 × 105,364.62
  4. Step 4: Simplify right side
    111,400.74x = 17,484,576,979.91
  5. Step 5: Solve for x
    x = 17,484,576,979.91/111,400.74
  6. Step 6: Final answer
    x = 156,952.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.