Home / 132,389.22-182,698.36-71,960

Finding the Fourth Proportional to 132,389.22, 182,698.36 and 71,960

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Solution

The fourth proportional to 132,389.22, 182,698.36 and 71,960 is: 99,305.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,389.22 : 182,698.36 = 71,960 : x
  2. Step 2: Convert to fraction form
    132,389.22/182,698.36 = 71,960/x
  3. Step 3: Cross multiply
    132,389.22x = 182,698.36 × 71,960
  4. Step 4: Simplify right side
    132,389.22x = 13,146,973,985.60
  5. Step 5: Solve for x
    x = 13,146,973,985.60/132,389.22
  6. Step 6: Final answer
    x = 99,305.47

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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.