Home / 144,911.04-199,966.32-81,247.20

Finding the Fourth Proportional to 144,911.04, 199,966.32 and 81,247.20

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Solution

The fourth proportional to 144,911.04, 199,966.32 and 81,247.20 is: 112,115.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,911.04 : 199,966.32 = 81,247.20 : x
  2. Step 2: Convert to fraction form
    144,911.04/199,966.32 = 81,247.20/x
  3. Step 3: Cross multiply
    144,911.04x = 199,966.32 × 81,247.20
  4. Step 4: Simplify right side
    144,911.04x = 16,246,703,594.30
  5. Step 5: Solve for x
    x = 16,246,703,594.30/144,911.04
  6. Step 6: Final answer
    x = 112,115.02

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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.