Home / 185,948.21-256,607.53-105,390.97

Finding the Fourth Proportional to 185,948.21, 256,607.53 and 105,390.97

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Solution

The fourth proportional to 185,948.21, 256,607.53 and 105,390.97 is: 145,438.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,948.21 : 256,607.53 = 105,390.97 : x
  2. Step 2: Convert to fraction form
    185,948.21/256,607.53 = 105,390.97/x
  3. Step 3: Cross multiply
    185,948.21x = 256,607.53 × 105,390.97
  4. Step 4: Simplify right side
    185,948.21x = 27,044,115,591.01
  5. Step 5: Solve for x
    x = 27,044,115,591.01/185,948.21
  6. Step 6: Final answer
    x = 145,438.97

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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.