Home / 129,806.75-179,133.32-70,190.75

Finding the Fourth Proportional to 129,806.75, 179,133.32 and 70,190.75

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Solution

The fourth proportional to 129,806.75, 179,133.32 and 70,190.75 is: 96,863.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,806.75 : 179,133.32 = 70,190.75 : x
  2. Step 2: Convert to fraction form
    129,806.75/179,133.32 = 70,190.75/x
  3. Step 3: Cross multiply
    129,806.75x = 179,133.32 × 70,190.75
  4. Step 4: Simplify right side
    129,806.75x = 12,573,502,080.79
  5. Step 5: Solve for x
    x = 12,573,502,080.79/129,806.75
  6. Step 6: Final answer
    x = 96,863.24

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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.