Home / 94,611.20-141,916.80-90,003.20

Finding the Fourth Proportional to 94,611.20, 141,916.80 and 90,003.20

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Solution

The fourth proportional to 94,611.20, 141,916.80 and 90,003.20 is: 135,004.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,611.20 : 141,916.80 = 90,003.20 : x
  2. Step 2: Convert to fraction form
    94,611.20/141,916.80 = 90,003.20/x
  3. Step 3: Cross multiply
    94,611.20x = 141,916.80 × 90,003.20
  4. Step 4: Simplify right side
    94,611.20x = 12,772,966,133.76
  5. Step 5: Solve for x
    x = 12,772,966,133.76/94,611.20
  6. Step 6: Final answer
    x = 135,004.80

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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.