Home / 185,710.90-256,281.75-100,827.94

Finding the Fourth Proportional to 185,710.90, 256,281.75 and 100,827.94

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Solution

The fourth proportional to 185,710.90, 256,281.75 and 100,827.94 is: 139,142.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,710.90 : 256,281.75 = 100,827.94 : x
  2. Step 2: Convert to fraction form
    185,710.90/256,281.75 = 100,827.94/x
  3. Step 3: Cross multiply
    185,710.90x = 256,281.75 × 100,827.94
  4. Step 4: Simplify right side
    185,710.90x = 25,840,360,912.10
  5. Step 5: Solve for x
    x = 25,840,360,912.10/185,710.90
  6. Step 6: Final answer
    x = 139,142.94

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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.