Home / 129,971.07-194,734.80-70,700.94

Finding the Fourth Proportional to 129,971.07, 194,734.80 and 70,700.94

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Solution

The fourth proportional to 129,971.07, 194,734.80 and 70,700.94 is: 105,930.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,971.07 : 194,734.80 = 70,700.94 : x
  2. Step 2: Convert to fraction form
    129,971.07/194,734.80 = 70,700.94/x
  3. Step 3: Cross multiply
    129,971.07x = 194,734.80 × 70,700.94
  4. Step 4: Simplify right side
    129,971.07x = 13,767,933,410.71
  5. Step 5: Solve for x
    x = 13,767,933,410.71/129,971.07
  6. Step 6: Final answer
    x = 105,930.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.