Home / 151,173.74-208,628.38-86,653.72

Finding the Fourth Proportional to 151,173.74, 208,628.38 and 86,653.72

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Solution

The fourth proportional to 151,173.74, 208,628.38 and 86,653.72 is: 119,587.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,173.74 : 208,628.38 = 86,653.72 : x
  2. Step 2: Convert to fraction form
    151,173.74/208,628.38 = 86,653.72/x
  3. Step 3: Cross multiply
    151,173.74x = 208,628.38 × 86,653.72
  4. Step 4: Simplify right side
    151,173.74x = 18,078,424,181.43
  5. Step 5: Solve for x
    x = 18,078,424,181.43/151,173.74
  6. Step 6: Final answer
    x = 119,587.07

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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.