Home / 185,642.12-256,142.19-105,069.63

Finding the Fourth Proportional to 185,642.12, 256,142.19 and 105,069.63

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Solution

The fourth proportional to 185,642.12, 256,142.19 and 105,069.63 is: 144,971.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,642.12 : 256,142.19 = 105,069.63 : x
  2. Step 2: Convert to fraction form
    185,642.12/256,142.19 = 105,069.63/x
  3. Step 3: Cross multiply
    185,642.12x = 256,142.19 × 105,069.63
  4. Step 4: Simplify right side
    185,642.12x = 26,912,765,130.69
  5. Step 5: Solve for x
    x = 26,912,765,130.69/185,642.12
  6. Step 6: Final answer
    x = 144,971.23

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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.