Home / 185,730.72-256,305.74-105,156.14

Finding the Fourth Proportional to 185,730.72, 256,305.74 and 105,156.14

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Solution

The fourth proportional to 185,730.72, 256,305.74 and 105,156.14 is: 145,113.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,730.72 : 256,305.74 = 105,156.14 : x
  2. Step 2: Convert to fraction form
    185,730.72/256,305.74 = 105,156.14/x
  3. Step 3: Cross multiply
    185,730.72x = 256,305.74 × 105,156.14
  4. Step 4: Simplify right side
    185,730.72x = 26,952,122,278.24
  5. Step 5: Solve for x
    x = 26,952,122,278.24/185,730.72
  6. Step 6: Final answer
    x = 145,113.97

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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.