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Finding the Fourth Proportional to 137,349, 206,959.40 and 112,935.94

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Solution

The fourth proportional to 137,349, 206,959.40 and 112,935.94 is: 170,173.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,349 : 206,959.40 = 112,935.94 : x
  2. Step 2: Convert to fraction form
    137,349/206,959.40 = 112,935.94/x
  3. Step 3: Cross multiply
    137,349x = 206,959.40 × 112,935.94
  4. Step 4: Simplify right side
    137,349x = 23,373,154,357.53
  5. Step 5: Solve for x
    x = 23,373,154,357.53/137,349
  6. Step 6: Final answer
    x = 170,173.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.