Home / 211,487.76-291,742.56-125,396.64

Finding the Fourth Proportional to 211,487.76, 291,742.56 and 125,396.64

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Solution

The fourth proportional to 211,487.76, 291,742.56 and 125,396.64 is: 172,981.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,487.76 : 291,742.56 = 125,396.64 : x
  2. Step 2: Convert to fraction form
    211,487.76/291,742.56 = 125,396.64/x
  3. Step 3: Cross multiply
    211,487.76x = 291,742.56 × 125,396.64
  4. Step 4: Simplify right side
    211,487.76x = 36,583,536,769.00
  5. Step 5: Solve for x
    x = 36,583,536,769.00/211,487.76
  6. Step 6: Final answer
    x = 172,981.82

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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.