Home / 185,821.38-256,427.64-105,256.35

Finding the Fourth Proportional to 185,821.38, 256,427.64 and 105,256.35

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Solution

The fourth proportional to 185,821.38, 256,427.64 and 105,256.35 is: 145,250.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,821.38 : 256,427.64 = 105,256.35 : x
  2. Step 2: Convert to fraction form
    185,821.38/256,427.64 = 105,256.35/x
  3. Step 3: Cross multiply
    185,821.38x = 256,427.64 × 105,256.35
  4. Step 4: Simplify right side
    185,821.38x = 26,990,637,425.51
  5. Step 5: Solve for x
    x = 26,990,637,425.51/185,821.38
  6. Step 6: Final answer
    x = 145,250.44

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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.