Home / 144,748.04-199,752-80,221.40

Finding the Fourth Proportional to 144,748.04, 199,752 and 80,221.40

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Solution

The fourth proportional to 144,748.04, 199,752 and 80,221.40 is: 110,705.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,748.04 : 199,752 = 80,221.40 : x
  2. Step 2: Convert to fraction form
    144,748.04/199,752 = 80,221.40/x
  3. Step 3: Cross multiply
    144,748.04x = 199,752 × 80,221.40
  4. Step 4: Simplify right side
    144,748.04x = 16,024,385,092.80
  5. Step 5: Solve for x
    x = 16,024,385,092.80/144,748.04
  6. Step 6: Final answer
    x = 110,705.37

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1.5x scale

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.