Home / 186,876.72-257,800.23-122,317.56

Finding the Fourth Proportional to 186,876.72, 257,800.23 and 122,317.56

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Solution

The fourth proportional to 186,876.72, 257,800.23 and 122,317.56 is: 168,739.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,876.72 : 257,800.23 = 122,317.56 : x
  2. Step 2: Convert to fraction form
    186,876.72/257,800.23 = 122,317.56/x
  3. Step 3: Cross multiply
    186,876.72x = 257,800.23 × 122,317.56
  4. Step 4: Simplify right side
    186,876.72x = 31,533,495,101.04
  5. Step 5: Solve for x
    x = 31,533,495,101.04/186,876.72
  6. Step 6: Final answer
    x = 168,739.56

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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.