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Finding the Fourth Proportional to 91,803.60, 137,899.80 and 88,498.80

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Solution

The fourth proportional to 91,803.60, 137,899.80 and 88,498.80 is: 132,935.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,803.60 : 137,899.80 = 88,498.80 : x
  2. Step 2: Convert to fraction form
    91,803.60/137,899.80 = 88,498.80/x
  3. Step 3: Cross multiply
    91,803.60x = 137,899.80 × 88,498.80
  4. Step 4: Simplify right side
    91,803.60x = 12,203,966,820.24
  5. Step 5: Solve for x
    x = 12,203,966,820.24/91,803.60
  6. Step 6: Final answer
    x = 132,935.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.