Home / 186,284.30-257,065.17-105,707.03

Finding the Fourth Proportional to 186,284.30, 257,065.17 and 105,707.03

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Solution

The fourth proportional to 186,284.30, 257,065.17 and 105,707.03 is: 145,871.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,284.30 : 257,065.17 = 105,707.03 : x
  2. Step 2: Convert to fraction form
    186,284.30/257,065.17 = 105,707.03/x
  3. Step 3: Cross multiply
    186,284.30x = 257,065.17 × 105,707.03
  4. Step 4: Simplify right side
    186,284.30x = 27,173,595,637.15
  5. Step 5: Solve for x
    x = 27,173,595,637.15/186,284.30
  6. Step 6: Final answer
    x = 145,871.64

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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.