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Finding the Fourth Proportional to 137,036.38, 189,102.48 and 76,594.98

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Solution

The fourth proportional to 137,036.38, 189,102.48 and 76,594.98 is: 105,696.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,036.38 : 189,102.48 = 76,594.98 : x
  2. Step 2: Convert to fraction form
    137,036.38/189,102.48 = 76,594.98/x
  3. Step 3: Cross multiply
    137,036.38x = 189,102.48 × 76,594.98
  4. Step 4: Simplify right side
    137,036.38x = 14,484,300,673.55
  5. Step 5: Solve for x
    x = 14,484,300,673.55/137,036.38
  6. Step 6: Final answer
    x = 105,696.75

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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.