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Finding the Fourth Proportional to 144,004.40, 216,006.60 and 73,890.80

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Solution

The fourth proportional to 144,004.40, 216,006.60 and 73,890.80 is: 110,836.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,004.40 : 216,006.60 = 73,890.80 : x
  2. Step 2: Convert to fraction form
    144,004.40/216,006.60 = 73,890.80/x
  3. Step 3: Cross multiply
    144,004.40x = 216,006.60 × 73,890.80
  4. Step 4: Simplify right side
    144,004.40x = 15,960,900,479.28
  5. Step 5: Solve for x
    x = 15,960,900,479.28/144,004.40
  6. Step 6: Final answer
    x = 110,836.20

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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.