Home / 129,642.75-178,907.00-73,056.15

Finding the Fourth Proportional to 129,642.75, 178,907.00 and 73,056.15

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Solution

The fourth proportional to 129,642.75, 178,907.00 and 73,056.15 is: 100,817.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,642.75 : 178,907.00 = 73,056.15 : x
  2. Step 2: Convert to fraction form
    129,642.75/178,907.00 = 73,056.15/x
  3. Step 3: Cross multiply
    129,642.75x = 178,907.00 × 73,056.15
  4. Step 4: Simplify right side
    129,642.75x = 13,070,256,262.77
  5. Step 5: Solve for x
    x = 13,070,256,262.77/129,642.75
  6. Step 6: Final answer
    x = 100,817.49

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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.