Home / 129,973.61-194,973.28-54,056.57

Finding the Fourth Proportional to 129,973.61, 194,973.28 and 54,056.57

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Solution

The fourth proportional to 129,973.61, 194,973.28 and 54,056.57 is: 81,090.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,973.61 : 194,973.28 = 54,056.57 : x
  2. Step 2: Convert to fraction form
    129,973.61/194,973.28 = 54,056.57/x
  3. Step 3: Cross multiply
    129,973.61x = 194,973.28 × 54,056.57
  4. Step 4: Simplify right side
    129,973.61x = 10,539,585,648.44
  5. Step 5: Solve for x
    x = 10,539,585,648.44/129,973.61
  6. Step 6: Final answer
    x = 81,090.20

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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.