Home / 123,411.08-170,307.42-66,822.32

Finding the Fourth Proportional to 123,411.08, 170,307.42 and 66,822.32

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Solution

The fourth proportional to 123,411.08, 170,307.42 and 66,822.32 is: 92,214.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,411.08 : 170,307.42 = 66,822.32 : x
  2. Step 2: Convert to fraction form
    123,411.08/170,307.42 = 66,822.32/x
  3. Step 3: Cross multiply
    123,411.08x = 170,307.42 × 66,822.32
  4. Step 4: Simplify right side
    123,411.08x = 11,380,337,092.80
  5. Step 5: Solve for x
    x = 11,380,337,092.80/123,411.08
  6. Step 6: Final answer
    x = 92,214.87

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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.