Home / 129,633.75-178,894.70-70,017.75

Finding the Fourth Proportional to 129,633.75, 178,894.70 and 70,017.75

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Solution

The fourth proportional to 129,633.75, 178,894.70 and 70,017.75 is: 96,624.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,633.75 : 178,894.70 = 70,017.75 : x
  2. Step 2: Convert to fraction form
    129,633.75/178,894.70 = 70,017.75/x
  3. Step 3: Cross multiply
    129,633.75x = 178,894.70 × 70,017.75
  4. Step 4: Simplify right side
    129,633.75x = 12,525,804,380.93
  5. Step 5: Solve for x
    x = 12,525,804,380.93/129,633.75
  6. Step 6: Final answer
    x = 96,624.56

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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.