Home / 157,826.10-217,805.25-86,212.80

Finding the Fourth Proportional to 157,826.10, 217,805.25 and 86,212.80

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Solution

The fourth proportional to 157,826.10, 217,805.25 and 86,212.80 is: 118,976.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,826.10 : 217,805.25 = 86,212.80 : x
  2. Step 2: Convert to fraction form
    157,826.10/217,805.25 = 86,212.80/x
  3. Step 3: Cross multiply
    157,826.10x = 217,805.25 × 86,212.80
  4. Step 4: Simplify right side
    157,826.10x = 18,777,600,457.20
  5. Step 5: Solve for x
    x = 18,777,600,457.20/157,826.10
  6. Step 6: Final answer
    x = 118,976.52

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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.