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Finding the Fourth Proportional to 108,307.80, 162,404.10 and 45,907.80

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Solution

The fourth proportional to 108,307.80, 162,404.10 and 45,907.80 is: 68,837.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,307.80 : 162,404.10 = 45,907.80 : x
  2. Step 2: Convert to fraction form
    108,307.80/162,404.10 = 45,907.80/x
  3. Step 3: Cross multiply
    108,307.80x = 162,404.10 × 45,907.80
  4. Step 4: Simplify right side
    108,307.80x = 7,455,614,941.98
  5. Step 5: Solve for x
    x = 7,455,614,941.98/108,307.80
  6. Step 6: Final answer
    x = 68,837.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.