Home / 186,261.72-257,026.14-129,795

Finding the Fourth Proportional to 186,261.72, 257,026.14 and 129,795

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Solution

The fourth proportional to 186,261.72, 257,026.14 and 129,795 is: 179,106.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,261.72 : 257,026.14 = 129,795 : x
  2. Step 2: Convert to fraction form
    186,261.72/257,026.14 = 129,795/x
  3. Step 3: Cross multiply
    186,261.72x = 257,026.14 × 129,795
  4. Step 4: Simplify right side
    186,261.72x = 33,360,707,841.30
  5. Step 5: Solve for x
    x = 33,360,707,841.30/186,261.72
  6. Step 6: Final answer
    x = 179,106.62

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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.