Home / 129,829.12-179,172.48-73,219.84

Finding the Fourth Proportional to 129,829.12, 179,172.48 and 73,219.84

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Solution

The fourth proportional to 129,829.12, 179,172.48 and 73,219.84 is: 101,048.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,829.12 : 179,172.48 = 73,219.84 : x
  2. Step 2: Convert to fraction form
    129,829.12/179,172.48 = 73,219.84/x
  3. Step 3: Cross multiply
    129,829.12x = 179,172.48 × 73,219.84
  4. Step 4: Simplify right side
    129,829.12x = 13,118,980,318.00
  5. Step 5: Solve for x
    x = 13,118,980,318.00/129,829.12
  6. Step 6: Final answer
    x = 101,048.06

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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.