Home / 129,867.40-194,666.70-70,577.80

Finding the Fourth Proportional to 129,867.40, 194,666.70 and 70,577.80

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Solution

The fourth proportional to 129,867.40, 194,666.70 and 70,577.80 is: 105,793.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,867.40 : 194,666.70 = 70,577.80 : x
  2. Step 2: Convert to fraction form
    129,867.40/194,666.70 = 70,577.80/x
  3. Step 3: Cross multiply
    129,867.40x = 194,666.70 × 70,577.80
  4. Step 4: Simplify right side
    129,867.40x = 13,739,147,419.26
  5. Step 5: Solve for x
    x = 13,739,147,419.26/129,867.40
  6. Step 6: Final answer
    x = 105,793.66

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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.