Home / 123,483.90-170,407.75-66,895.26

Finding the Fourth Proportional to 123,483.90, 170,407.75 and 66,895.26

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Solution

The fourth proportional to 123,483.90, 170,407.75 and 66,895.26 is: 92,315.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,483.90 : 170,407.75 = 66,895.26 : x
  2. Step 2: Convert to fraction form
    123,483.90/170,407.75 = 66,895.26/x
  3. Step 3: Cross multiply
    123,483.90x = 170,407.75 × 66,895.26
  4. Step 4: Simplify right side
    123,483.90x = 11,399,470,742.27
  5. Step 5: Solve for x
    x = 11,399,470,742.27/123,483.90
  6. Step 6: Final answer
    x = 92,315.44

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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.