Home / 186,285.16-257,066.40-105,707.88

Finding the Fourth Proportional to 186,285.16, 257,066.40 and 105,707.88

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Solution

The fourth proportional to 186,285.16, 257,066.40 and 105,707.88 is: 145,872.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,285.16 : 257,066.40 = 105,707.88 : x
  2. Step 2: Convert to fraction form
    186,285.16/257,066.40 = 105,707.88/x
  3. Step 3: Cross multiply
    186,285.16x = 257,066.40 × 105,707.88
  4. Step 4: Simplify right side
    186,285.16x = 27,173,944,163.23
  5. Step 5: Solve for x
    x = 27,173,944,163.23/186,285.16
  6. Step 6: Final answer
    x = 145,872.83

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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.