Home / 185,788.52-256,394.21-105,214.31

Finding the Fourth Proportional to 185,788.52, 256,394.21 and 105,214.31

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Solution

The fourth proportional to 185,788.52, 256,394.21 and 105,214.31 is: 145,199.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,788.52 : 256,394.21 = 105,214.31 : x
  2. Step 2: Convert to fraction form
    185,788.52/256,394.21 = 105,214.31/x
  3. Step 3: Cross multiply
    185,788.52x = 256,394.21 × 105,214.31
  4. Step 4: Simplify right side
    185,788.52x = 26,976,338,085.10
  5. Step 5: Solve for x
    x = 26,976,338,085.10/185,788.52
  6. Step 6: Final answer
    x = 145,199.17

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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.