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Finding the Fourth Proportional to 88,137.68, 121,512.51 and 70,048.80

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Solution

The fourth proportional to 88,137.68, 121,512.51 and 70,048.80 is: 96,573.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,137.68 : 121,512.51 = 70,048.80 : x
  2. Step 2: Convert to fraction form
    88,137.68/121,512.51 = 70,048.80/x
  3. Step 3: Cross multiply
    88,137.68x = 121,512.51 × 70,048.80
  4. Step 4: Simplify right side
    88,137.68x = 8,511,805,510.49
  5. Step 5: Solve for x
    x = 8,511,805,510.49/88,137.68
  6. Step 6: Final answer
    x = 96,573.97

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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.