Home / 88,196.90-121,712.58-47,910.98

Finding the Fourth Proportional to 88,196.90, 121,712.58 and 47,910.98

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Solution

The fourth proportional to 88,196.90, 121,712.58 and 47,910.98 is: 66,117.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,196.90 : 121,712.58 = 47,910.98 : x
  2. Step 2: Convert to fraction form
    88,196.90/121,712.58 = 47,910.98/x
  3. Step 3: Cross multiply
    88,196.90x = 121,712.58 × 47,910.98
  4. Step 4: Simplify right side
    88,196.90x = 5,831,369,290.41
  5. Step 5: Solve for x
    x = 5,831,369,290.41/88,196.90
  6. Step 6: Final answer
    x = 66,117.63

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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.