Home / 155,336.66-214,436.79-117,111.68

Finding the Fourth Proportional to 155,336.66, 214,436.79 and 117,111.68

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Solution

The fourth proportional to 155,336.66, 214,436.79 and 117,111.68 is: 161,668.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,336.66 : 214,436.79 = 117,111.68 : x
  2. Step 2: Convert to fraction form
    155,336.66/214,436.79 = 117,111.68/x
  3. Step 3: Cross multiply
    155,336.66x = 214,436.79 × 117,111.68
  4. Step 4: Simplify right side
    155,336.66x = 25,113,052,730.71
  5. Step 5: Solve for x
    x = 25,113,052,730.71/155,336.66
  6. Step 6: Final answer
    x = 161,668.55

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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.