Home / 144,678.08-199,642.80-81,002.32

Finding the Fourth Proportional to 144,678.08, 199,642.80 and 81,002.32

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Solution

The fourth proportional to 144,678.08, 199,642.80 and 81,002.32 is: 111,775.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,678.08 : 199,642.80 = 81,002.32 : x
  2. Step 2: Convert to fraction form
    144,678.08/199,642.80 = 81,002.32/x
  3. Step 3: Cross multiply
    144,678.08x = 199,642.80 × 81,002.32
  4. Step 4: Simplify right side
    144,678.08x = 16,171,529,971.30
  5. Step 5: Solve for x
    x = 16,171,529,971.30/144,678.08
  6. Step 6: Final answer
    x = 111,775.95

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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.