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Finding the Fourth Proportional to 134,353, 185,407.32 and 74,737

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Solution

The fourth proportional to 134,353, 185,407.32 and 74,737 is: 103,137.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,353 : 185,407.32 = 74,737 : x
  2. Step 2: Convert to fraction form
    134,353/185,407.32 = 74,737/x
  3. Step 3: Cross multiply
    134,353x = 185,407.32 × 74,737
  4. Step 4: Simplify right side
    134,353x = 13,856,786,874.84
  5. Step 5: Solve for x
    x = 13,856,786,874.84/134,353
  6. Step 6: Final answer
    x = 103,137.16

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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.