Home / 117,593.07-162,345.77-77,423.60

Finding the Fourth Proportional to 117,593.07, 162,345.77 and 77,423.60

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Solution

The fourth proportional to 117,593.07, 162,345.77 and 77,423.60 is: 106,888.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,593.07 : 162,345.77 = 77,423.60 : x
  2. Step 2: Convert to fraction form
    117,593.07/162,345.77 = 77,423.60/x
  3. Step 3: Cross multiply
    117,593.07x = 162,345.77 × 77,423.60
  4. Step 4: Simplify right side
    117,593.07x = 12,569,392,759.33
  5. Step 5: Solve for x
    x = 12,569,392,759.33/117,593.07
  6. Step 6: Final answer
    x = 106,888.89

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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.