Home / 129,425.40-194,212.08-70,265.88

Finding the Fourth Proportional to 129,425.40, 194,212.08 and 70,265.88

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Solution

The fourth proportional to 129,425.40, 194,212.08 and 70,265.88 is: 105,438.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,425.40 : 194,212.08 = 70,265.88 : x
  2. Step 2: Convert to fraction form
    129,425.40/194,212.08 = 70,265.88/x
  3. Step 3: Cross multiply
    129,425.40x = 194,212.08 × 70,265.88
  4. Step 4: Simplify right side
    129,425.40x = 13,646,482,707.83
  5. Step 5: Solve for x
    x = 13,646,482,707.83/129,425.40
  6. Step 6: Final answer
    x = 105,438.98

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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.