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Finding the Fourth Proportional to 123,703.08, 170,625.54 and 85,950.12

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Solution

The fourth proportional to 123,703.08, 170,625.54 and 85,950.12 is: 118,552.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,703.08 : 170,625.54 = 85,950.12 : x
  2. Step 2: Convert to fraction form
    123,703.08/170,625.54 = 85,950.12/x
  3. Step 3: Cross multiply
    123,703.08x = 170,625.54 × 85,950.12
  4. Step 4: Simplify right side
    123,703.08x = 14,665,285,638.06
  5. Step 5: Solve for x
    x = 14,665,285,638.06/123,703.08
  6. Step 6: Final answer
    x = 118,552.31

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1.5x scale

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.