Home / 185,966.36-256,625.30-105,389.16

Finding the Fourth Proportional to 185,966.36, 256,625.30 and 105,389.16

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Solution

The fourth proportional to 185,966.36, 256,625.30 and 105,389.16 is: 145,432.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,966.36 : 256,625.30 = 105,389.16 : x
  2. Step 2: Convert to fraction form
    185,966.36/256,625.30 = 105,389.16/x
  3. Step 3: Cross multiply
    185,966.36x = 256,625.30 × 105,389.16
  4. Step 4: Simplify right side
    185,966.36x = 27,045,524,801.75
  5. Step 5: Solve for x
    x = 27,045,524,801.75/185,966.36
  6. Step 6: Final answer
    x = 145,432.35

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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.