Home / 129,043.22-178,059.74-73,848.20

Finding the Fourth Proportional to 129,043.22, 178,059.74 and 73,848.20

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Solution

The fourth proportional to 129,043.22, 178,059.74 and 73,848.20 is: 101,899.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,043.22 : 178,059.74 = 73,848.20 : x
  2. Step 2: Convert to fraction form
    129,043.22/178,059.74 = 73,848.20/x
  3. Step 3: Cross multiply
    129,043.22x = 178,059.74 × 73,848.20
  4. Step 4: Simplify right side
    129,043.22x = 13,149,390,031.93
  5. Step 5: Solve for x
    x = 13,149,390,031.93/129,043.22
  6. Step 6: Final answer
    x = 101,899.12

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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.