Home / 123,486.03-170,410.69-66,897.40

Finding the Fourth Proportional to 123,486.03, 170,410.69 and 66,897.40

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Solution

The fourth proportional to 123,486.03, 170,410.69 and 66,897.40 is: 92,318.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,486.03 : 170,410.69 = 66,897.40 : x
  2. Step 2: Convert to fraction form
    123,486.03/170,410.69 = 66,897.40/x
  3. Step 3: Cross multiply
    123,486.03x = 170,410.69 × 66,897.40
  4. Step 4: Simplify right side
    123,486.03x = 11,400,032,093.21
  5. Step 5: Solve for x
    x = 11,400,032,093.21/123,486.03
  6. Step 6: Final answer
    x = 92,318.39

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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.