Home / 117,512.54-162,192.90-72,214.30

Finding the Fourth Proportional to 117,512.54, 162,192.90 and 72,214.30

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Solution

The fourth proportional to 117,512.54, 162,192.90 and 72,214.30 is: 99,671.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,512.54 : 162,192.90 = 72,214.30 : x
  2. Step 2: Convert to fraction form
    117,512.54/162,192.90 = 72,214.30/x
  3. Step 3: Cross multiply
    117,512.54x = 162,192.90 × 72,214.30
  4. Step 4: Simplify right side
    117,512.54x = 11,712,646,738.47
  5. Step 5: Solve for x
    x = 11,712,646,738.47/117,512.54
  6. Step 6: Final answer
    x = 99,671.46

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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.