Home / 123,487.08-170,412.96-66,898.44

Finding the Fourth Proportional to 123,487.08, 170,412.96 and 66,898.44

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Solution

The fourth proportional to 123,487.08, 170,412.96 and 66,898.44 is: 92,320.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,487.08 : 170,412.96 = 66,898.44 : x
  2. Step 2: Convert to fraction form
    123,487.08/170,412.96 = 66,898.44/x
  3. Step 3: Cross multiply
    123,487.08x = 170,412.96 × 66,898.44
  4. Step 4: Simplify right side
    123,487.08x = 11,400,361,179.78
  5. Step 5: Solve for x
    x = 11,400,361,179.78/123,487.08
  6. Step 6: Final answer
    x = 92,320.27

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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.