Home / 144,941.20-217,519.80-74,784.40

Finding the Fourth Proportional to 144,941.20, 217,519.80 and 74,784.40

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Solution

The fourth proportional to 144,941.20, 217,519.80 and 74,784.40 is: 112,232.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,941.20 : 217,519.80 = 74,784.40 : x
  2. Step 2: Convert to fraction form
    144,941.20/217,519.80 = 74,784.40/x
  3. Step 3: Cross multiply
    144,941.20x = 217,519.80 × 74,784.40
  4. Step 4: Simplify right side
    144,941.20x = 16,267,087,731.12
  5. Step 5: Solve for x
    x = 16,267,087,731.12/144,941.20
  6. Step 6: Final answer
    x = 112,232.32

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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.