Home / 186,918.16-257,945.20-115,269.52

Finding the Fourth Proportional to 186,918.16, 257,945.20 and 115,269.52

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Solution

The fourth proportional to 186,918.16, 257,945.20 and 115,269.52 is: 159,070.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,918.16 : 257,945.20 = 115,269.52 : x
  2. Step 2: Convert to fraction form
    186,918.16/257,945.20 = 115,269.52/x
  3. Step 3: Cross multiply
    186,918.16x = 257,945.20 × 115,269.52
  4. Step 4: Simplify right side
    186,918.16x = 29,733,219,390.30
  5. Step 5: Solve for x
    x = 29,733,219,390.30/186,918.16
  6. Step 6: Final answer
    x = 159,070.79

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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.