Home / 123,506.90-170,439.63-66,918.27

Finding the Fourth Proportional to 123,506.90, 170,439.63 and 66,918.27

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Solution

The fourth proportional to 123,506.90, 170,439.63 and 66,918.27 is: 92,347.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,506.90 : 170,439.63 = 66,918.27 : x
  2. Step 2: Convert to fraction form
    123,506.90/170,439.63 = 66,918.27/x
  3. Step 3: Cross multiply
    123,506.90x = 170,439.63 × 66,918.27
  4. Step 4: Simplify right side
    123,506.90x = 11,405,525,276.09
  5. Step 5: Solve for x
    x = 11,405,525,276.09/123,506.90
  6. Step 6: Final answer
    x = 92,347.27

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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.