Home / 129,378.08-194,064.66-70,588.04

Finding the Fourth Proportional to 129,378.08, 194,064.66 and 70,588.04

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Solution

The fourth proportional to 129,378.08, 194,064.66 and 70,588.04 is: 105,880.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,378.08 : 194,064.66 = 70,588.04 : x
  2. Step 2: Convert to fraction form
    129,378.08/194,064.66 = 70,588.04/x
  3. Step 3: Cross multiply
    129,378.08x = 194,064.66 × 70,588.04
  4. Step 4: Simplify right side
    129,378.08x = 13,698,643,982.67
  5. Step 5: Solve for x
    x = 13,698,643,982.67/129,378.08
  6. Step 6: Final answer
    x = 105,880.72

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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.