Home / 186,263.12-257,078.54-105,698.15

Finding the Fourth Proportional to 186,263.12, 257,078.54 and 105,698.15

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Solution

The fourth proportional to 186,263.12, 257,078.54 and 105,698.15 is: 145,883.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,263.12 : 257,078.54 = 105,698.15 : x
  2. Step 2: Convert to fraction form
    186,263.12/257,078.54 = 105,698.15/x
  3. Step 3: Cross multiply
    186,263.12x = 257,078.54 × 105,698.15
  4. Step 4: Simplify right side
    186,263.12x = 27,172,724,665.19
  5. Step 5: Solve for x
    x = 27,172,724,665.19/186,263.12
  6. Step 6: Final answer
    x = 145,883.55

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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.