Home / 129,567.60-194,338.64-45,312.21

Finding the Fourth Proportional to 129,567.60, 194,338.64 and 45,312.21

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Solution

The fourth proportional to 129,567.60, 194,338.64 and 45,312.21 is: 67,963.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,567.60 : 194,338.64 = 45,312.21 : x
  2. Step 2: Convert to fraction form
    129,567.60/194,338.64 = 45,312.21/x
  3. Step 3: Cross multiply
    129,567.60x = 194,338.64 × 45,312.21
  4. Step 4: Simplify right side
    129,567.60x = 8,805,913,380.07
  5. Step 5: Solve for x
    x = 8,805,913,380.07/129,567.60
  6. Step 6: Final answer
    x = 67,963.85

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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.