Home / 144,872.67-199,924.02-81,210.45

Finding the Fourth Proportional to 144,872.67, 199,924.02 and 81,210.45

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Solution

The fourth proportional to 144,872.67, 199,924.02 and 81,210.45 is: 112,070.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,872.67 : 199,924.02 = 81,210.45 : x
  2. Step 2: Convert to fraction form
    144,872.67/199,924.02 = 81,210.45/x
  3. Step 3: Cross multiply
    144,872.67x = 199,924.02 × 81,210.45
  4. Step 4: Simplify right side
    144,872.67x = 16,235,919,630.01
  5. Step 5: Solve for x
    x = 16,235,919,630.01/144,872.67
  6. Step 6: Final answer
    x = 112,070.27

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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.