Home / 231,962.10-320,102.48-135,159.91

Finding the Fourth Proportional to 231,962.10, 320,102.48 and 135,159.91

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Solution

The fourth proportional to 231,962.10, 320,102.48 and 135,159.91 is: 186,517.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,962.10 : 320,102.48 = 135,159.91 : x
  2. Step 2: Convert to fraction form
    231,962.10/320,102.48 = 135,159.91/x
  3. Step 3: Cross multiply
    231,962.10x = 320,102.48 × 135,159.91
  4. Step 4: Simplify right side
    231,962.10x = 43,265,021,925.22
  5. Step 5: Solve for x
    x = 43,265,021,925.22/231,962.10
  6. Step 6: Final answer
    x = 186,517.64

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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.