Home / 144,869.76-199,920.96-81,210.24

Finding the Fourth Proportional to 144,869.76, 199,920.96 and 81,210.24

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Solution

The fourth proportional to 144,869.76, 199,920.96 and 81,210.24 is: 112,070.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,869.76 : 199,920.96 = 81,210.24 : x
  2. Step 2: Convert to fraction form
    144,869.76/199,920.96 = 81,210.24/x
  3. Step 3: Cross multiply
    144,869.76x = 199,920.96 × 81,210.24
  4. Step 4: Simplify right side
    144,869.76x = 16,235,629,142.63
  5. Step 5: Solve for x
    x = 16,235,629,142.63/144,869.76
  6. Step 6: Final answer
    x = 112,070.52

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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.