Home / 123,484.03-170,407.94-66,895.40

Finding the Fourth Proportional to 123,484.03, 170,407.94 and 66,895.40

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Solution

The fourth proportional to 123,484.03, 170,407.94 and 66,895.40 is: 92,315.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,484.03 : 170,407.94 = 66,895.40 : x
  2. Step 2: Convert to fraction form
    123,484.03/170,407.94 = 66,895.40/x
  3. Step 3: Cross multiply
    123,484.03x = 170,407.94 × 66,895.40
  4. Step 4: Simplify right side
    123,484.03x = 11,399,507,401.02
  5. Step 5: Solve for x
    x = 11,399,507,401.02/123,484.03
  6. Step 6: Final answer
    x = 92,315.64

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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.