Home / 136,870.56-188,777.13-117,782.15

Finding the Fourth Proportional to 136,870.56, 188,777.13 and 117,782.15

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Solution

The fourth proportional to 136,870.56, 188,777.13 and 117,782.15 is: 162,449.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,870.56 : 188,777.13 = 117,782.15 : x
  2. Step 2: Convert to fraction form
    136,870.56/188,777.13 = 117,782.15/x
  3. Step 3: Cross multiply
    136,870.56x = 188,777.13 × 117,782.15
  4. Step 4: Simplify right side
    136,870.56x = 22,234,576,581.06
  5. Step 5: Solve for x
    x = 22,234,576,581.06/136,870.56
  6. Step 6: Final answer
    x = 162,449.66

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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.