Home / 185,865.84-256,486.50-105,291.72

Finding the Fourth Proportional to 185,865.84, 256,486.50 and 105,291.72

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Solution

The fourth proportional to 185,865.84, 256,486.50 and 105,291.72 is: 145,297.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,865.84 : 256,486.50 = 105,291.72 : x
  2. Step 2: Convert to fraction form
    185,865.84/256,486.50 = 105,291.72/x
  3. Step 3: Cross multiply
    185,865.84x = 256,486.50 × 105,291.72
  4. Step 4: Simplify right side
    185,865.84x = 27,005,904,741.78
  5. Step 5: Solve for x
    x = 27,005,904,741.78/185,865.84
  6. Step 6: Final answer
    x = 145,297.84

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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.