Home / 148,333.12-204,696.96-81,264.64

Finding the Fourth Proportional to 148,333.12, 204,696.96 and 81,264.64

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Solution

The fourth proportional to 148,333.12, 204,696.96 and 81,264.64 is: 112,143.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,333.12 : 204,696.96 = 81,264.64 : x
  2. Step 2: Convert to fraction form
    148,333.12/204,696.96 = 81,264.64/x
  3. Step 3: Cross multiply
    148,333.12x = 204,696.96 × 81,264.64
  4. Step 4: Simplify right side
    148,333.12x = 16,634,624,763.49
  5. Step 5: Solve for x
    x = 16,634,624,763.49/148,333.12
  6. Step 6: Final answer
    x = 112,143.70

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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.