Home / 121,664.52-167,868.32-73,915.02

Finding the Fourth Proportional to 121,664.52, 167,868.32 and 73,915.02

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Solution

The fourth proportional to 121,664.52, 167,868.32 and 73,915.02 is: 101,985.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,664.52 : 167,868.32 = 73,915.02 : x
  2. Step 2: Convert to fraction form
    121,664.52/167,868.32 = 73,915.02/x
  3. Step 3: Cross multiply
    121,664.52x = 167,868.32 × 73,915.02
  4. Step 4: Simplify right side
    121,664.52x = 12,407,989,860.59
  5. Step 5: Solve for x
    x = 12,407,989,860.59/121,664.52
  6. Step 6: Final answer
    x = 101,985.28

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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.