Home / 125,475.43-173,156.39-68,890.45

Finding the Fourth Proportional to 125,475.43, 173,156.39 and 68,890.45

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Solution

The fourth proportional to 125,475.43, 173,156.39 and 68,890.45 is: 95,068.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,475.43 : 173,156.39 = 68,890.45 : x
  2. Step 2: Convert to fraction form
    125,475.43/173,156.39 = 68,890.45/x
  3. Step 3: Cross multiply
    125,475.43x = 173,156.39 × 68,890.45
  4. Step 4: Simplify right side
    125,475.43x = 11,928,821,627.48
  5. Step 5: Solve for x
    x = 11,928,821,627.48/125,475.43
  6. Step 6: Final answer
    x = 95,068.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.