Home / 210,953.21-291,104.25-115,441.45

Finding the Fourth Proportional to 210,953.21, 291,104.25 and 115,441.45

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Solution

The fourth proportional to 210,953.21, 291,104.25 and 115,441.45 is: 159,303.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,953.21 : 291,104.25 = 115,441.45 : x
  2. Step 2: Convert to fraction form
    210,953.21/291,104.25 = 115,441.45/x
  3. Step 3: Cross multiply
    210,953.21x = 291,104.25 × 115,441.45
  4. Step 4: Simplify right side
    210,953.21x = 33,605,497,009.77
  5. Step 5: Solve for x
    x = 33,605,497,009.77/210,953.21
  6. Step 6: Final answer
    x = 159,303.09

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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.