Home / 211,539.21-291,922.40-114,742.82

Finding the Fourth Proportional to 211,539.21, 291,922.40 and 114,742.82

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Solution

The fourth proportional to 211,539.21, 291,922.40 and 114,742.82 is: 158,344.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,539.21 : 291,922.40 = 114,742.82 : x
  2. Step 2: Convert to fraction form
    211,539.21/291,922.40 = 114,742.82/x
  3. Step 3: Cross multiply
    211,539.21x = 291,922.40 × 114,742.82
  4. Step 4: Simplify right side
    211,539.21x = 33,495,999,319.12
  5. Step 5: Solve for x
    x = 33,495,999,319.12/211,539.21
  6. Step 6: Final answer
    x = 158,344.17

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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.