Home / 135,320.10-186,737.12-74,893.30

Finding the Fourth Proportional to 135,320.10, 186,737.12 and 74,893.30

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Solution

The fourth proportional to 135,320.10, 186,737.12 and 74,893.30 is: 103,350.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,320.10 : 186,737.12 = 74,893.30 : x
  2. Step 2: Convert to fraction form
    135,320.10/186,737.12 = 74,893.30/x
  3. Step 3: Cross multiply
    135,320.10x = 186,737.12 × 74,893.30
  4. Step 4: Simplify right side
    135,320.10x = 13,985,359,149.30
  5. Step 5: Solve for x
    x = 13,985,359,149.30/135,320.10
  6. Step 6: Final answer
    x = 103,350.20

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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.