Home / 121,904.41-168,240.75-70,223.29

Finding the Fourth Proportional to 121,904.41, 168,240.75 and 70,223.29

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Solution

The fourth proportional to 121,904.41, 168,240.75 and 70,223.29 is: 96,915.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,904.41 : 168,240.75 = 70,223.29 : x
  2. Step 2: Convert to fraction form
    121,904.41/168,240.75 = 70,223.29/x
  3. Step 3: Cross multiply
    121,904.41x = 168,240.75 × 70,223.29
  4. Step 4: Simplify right side
    121,904.41x = 11,814,418,135.86
  5. Step 5: Solve for x
    x = 11,814,418,135.86/121,904.41
  6. Step 6: Final answer
    x = 96,915.43

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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.