Home / 123,835.57-170,893.74-70,131.04

Finding the Fourth Proportional to 123,835.57, 170,893.74 and 70,131.04

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Solution

The fourth proportional to 123,835.57, 170,893.74 and 70,131.04 is: 96,781.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,835.57 : 170,893.74 = 70,131.04 : x
  2. Step 2: Convert to fraction form
    123,835.57/170,893.74 = 70,131.04/x
  3. Step 3: Cross multiply
    123,835.57x = 170,893.74 × 70,131.04
  4. Step 4: Simplify right side
    123,835.57x = 11,984,955,715.69
  5. Step 5: Solve for x
    x = 11,984,955,715.69/123,835.57
  6. Step 6: Final answer
    x = 96,781.21

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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.