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Finding the Fourth Proportional to 137,855.04, 190,312.22 and 92,770.08

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Solution

The fourth proportional to 137,855.04, 190,312.22 and 92,770.08 is: 128,071.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,855.04 : 190,312.22 = 92,770.08 : x
  2. Step 2: Convert to fraction form
    137,855.04/190,312.22 = 92,770.08/x
  3. Step 3: Cross multiply
    137,855.04x = 190,312.22 × 92,770.08
  4. Step 4: Simplify right side
    137,855.04x = 17,655,279,874.38
  5. Step 5: Solve for x
    x = 17,655,279,874.38/137,855.04
  6. Step 6: Final answer
    x = 128,071.34

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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.