Home / 186,712.29-257,652.72-106,128.63

Finding the Fourth Proportional to 186,712.29, 257,652.72 and 106,128.63

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Solution

The fourth proportional to 186,712.29, 257,652.72 and 106,128.63 is: 146,451.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,712.29 : 257,652.72 = 106,128.63 : x
  2. Step 2: Convert to fraction form
    186,712.29/257,652.72 = 106,128.63/x
  3. Step 3: Cross multiply
    186,712.29x = 257,652.72 × 106,128.63
  4. Step 4: Simplify right side
    186,712.29x = 27,344,330,189.37
  5. Step 5: Solve for x
    x = 27,344,330,189.37/186,712.29
  6. Step 6: Final answer
    x = 146,451.69

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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.