Home / 129,829.16-179,172.60-73,239.32

Finding the Fourth Proportional to 129,829.16, 179,172.60 and 73,239.32

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Solution

The fourth proportional to 129,829.16, 179,172.60 and 73,239.32 is: 101,074.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,829.16 : 179,172.60 = 73,239.32 : x
  2. Step 2: Convert to fraction form
    129,829.16/179,172.60 = 73,239.32/x
  3. Step 3: Cross multiply
    129,829.16x = 179,172.60 × 73,239.32
  4. Step 4: Simplify right side
    129,829.16x = 13,122,479,386.63
  5. Step 5: Solve for x
    x = 13,122,479,386.63/129,829.16
  6. Step 6: Final answer
    x = 101,074.98

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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.