Home / 123,447.16-170,356.80-66,858.40

Finding the Fourth Proportional to 123,447.16, 170,356.80 and 66,858.40

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Solution

The fourth proportional to 123,447.16, 170,356.80 and 66,858.40 is: 92,264.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,447.16 : 170,356.80 = 66,858.40 : x
  2. Step 2: Convert to fraction form
    123,447.16/170,356.80 = 66,858.40/x
  3. Step 3: Cross multiply
    123,447.16x = 170,356.80 × 66,858.40
  4. Step 4: Simplify right side
    123,447.16x = 11,389,783,077.12
  5. Step 5: Solve for x
    x = 11,389,783,077.12/123,447.16
  6. Step 6: Final answer
    x = 92,264.44

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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.