Home / 144,877.07-199,929.55-81,213.50

Finding the Fourth Proportional to 144,877.07, 199,929.55 and 81,213.50

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Solution

The fourth proportional to 144,877.07, 199,929.55 and 81,213.50 is: 112,074.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,877.07 : 199,929.55 = 81,213.50 : x
  2. Step 2: Convert to fraction form
    144,877.07/199,929.55 = 81,213.50/x
  3. Step 3: Cross multiply
    144,877.07x = 199,929.55 × 81,213.50
  4. Step 4: Simplify right side
    144,877.07x = 16,236,978,508.93
  5. Step 5: Solve for x
    x = 16,236,978,508.93/144,877.07
  6. Step 6: Final answer
    x = 112,074.18

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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.