Home / 186,230.40-257,003.78-105,661.32

Finding the Fourth Proportional to 186,230.40, 257,003.78 and 105,661.32

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Solution

The fourth proportional to 186,230.40, 257,003.78 and 105,661.32 is: 145,815.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,230.40 : 257,003.78 = 105,661.32 : x
  2. Step 2: Convert to fraction form
    186,230.40/257,003.78 = 105,661.32/x
  3. Step 3: Cross multiply
    186,230.40x = 257,003.78 × 105,661.32
  4. Step 4: Simplify right side
    186,230.40x = 27,155,358,639.79
  5. Step 5: Solve for x
    x = 27,155,358,639.79/186,230.40
  6. Step 6: Final answer
    x = 145,815.93

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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.