Home / 129,949.58-179,328.93-76,224.26

Finding the Fourth Proportional to 129,949.58, 179,328.93 and 76,224.26

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Solution

The fourth proportional to 129,949.58, 179,328.93 and 76,224.26 is: 105,188.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,949.58 : 179,328.93 = 76,224.26 : x
  2. Step 2: Convert to fraction form
    129,949.58/179,328.93 = 76,224.26/x
  3. Step 3: Cross multiply
    129,949.58x = 179,328.93 × 76,224.26
  4. Step 4: Simplify right side
    129,949.58x = 13,669,214,985.84
  5. Step 5: Solve for x
    x = 13,669,214,985.84/129,949.58
  6. Step 6: Final answer
    x = 105,188.60

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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.