Home / 186,356.39-257,106.22-121,863.35

Finding the Fourth Proportional to 186,356.39, 257,106.22 and 121,863.35

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Solution

The fourth proportional to 186,356.39, 257,106.22 and 121,863.35 is: 168,128.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,356.39 : 257,106.22 = 121,863.35 : x
  2. Step 2: Convert to fraction form
    186,356.39/257,106.22 = 121,863.35/x
  3. Step 3: Cross multiply
    186,356.39x = 257,106.22 × 121,863.35
  4. Step 4: Simplify right side
    186,356.39x = 31,331,825,613.14
  5. Step 5: Solve for x
    x = 31,331,825,613.14/186,356.39
  6. Step 6: Final answer
    x = 168,128.53

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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.