Home / 123,915.39-171,001.13-67,326.36

Finding the Fourth Proportional to 123,915.39, 171,001.13 and 67,326.36

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Solution

The fourth proportional to 123,915.39, 171,001.13 and 67,326.36 is: 92,909.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,915.39 : 171,001.13 = 67,326.36 : x
  2. Step 2: Convert to fraction form
    123,915.39/171,001.13 = 67,326.36/x
  3. Step 3: Cross multiply
    123,915.39x = 171,001.13 × 67,326.36
  4. Step 4: Simplify right side
    123,915.39x = 11,512,883,638.79
  5. Step 5: Solve for x
    x = 11,512,883,638.79/123,915.39
  6. Step 6: Final answer
    x = 92,909.23

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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.