Home / 185,666.25-256,219.88-100,783.29

Finding the Fourth Proportional to 185,666.25, 256,219.88 and 100,783.29

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Solution

The fourth proportional to 185,666.25, 256,219.88 and 100,783.29 is: 139,081.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,666.25 : 256,219.88 = 100,783.29 : x
  2. Step 2: Convert to fraction form
    185,666.25/256,219.88 = 100,783.29/x
  3. Step 3: Cross multiply
    185,666.25x = 256,219.88 × 100,783.29
  4. Step 4: Simplify right side
    185,666.25x = 25,822,681,965.89
  5. Step 5: Solve for x
    x = 25,822,681,965.89/185,666.25
  6. Step 6: Final answer
    x = 139,081.18

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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.