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Finding the Fourth Proportional to 144,312.89, 216,473.04 and 68,393.70

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Solution

The fourth proportional to 144,312.89, 216,473.04 and 68,393.70 is: 102,592.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,312.89 : 216,473.04 = 68,393.70 : x
  2. Step 2: Convert to fraction form
    144,312.89/216,473.04 = 68,393.70/x
  3. Step 3: Cross multiply
    144,312.89x = 216,473.04 × 68,393.70
  4. Step 4: Simplify right side
    144,312.89x = 14,805,392,155.85
  5. Step 5: Solve for x
    x = 14,805,392,155.85/144,312.89
  6. Step 6: Final answer
    x = 102,592.31

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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.