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Finding the Fourth Proportional to 125,165.28, 172,730.64 and 68,573.28

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Solution

The fourth proportional to 125,165.28, 172,730.64 and 68,573.28 is: 94,632.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,165.28 : 172,730.64 = 68,573.28 : x
  2. Step 2: Convert to fraction form
    125,165.28/172,730.64 = 68,573.28/x
  3. Step 3: Cross multiply
    125,165.28x = 172,730.64 × 68,573.28
  4. Step 4: Simplify right side
    125,165.28x = 11,844,706,541.30
  5. Step 5: Solve for x
    x = 11,844,706,541.30/125,165.28
  6. Step 6: Final answer
    x = 94,632.53

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1.5x scale

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.