Home / 115,036.63-172,633.77-40,156.78

Finding the Fourth Proportional to 115,036.63, 172,633.77 and 40,156.78

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Solution

The fourth proportional to 115,036.63, 172,633.77 and 40,156.78 is: 60,262.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,036.63 : 172,633.77 = 40,156.78 : x
  2. Step 2: Convert to fraction form
    115,036.63/172,633.77 = 40,156.78/x
  3. Step 3: Cross multiply
    115,036.63x = 172,633.77 × 40,156.78
  4. Step 4: Simplify right side
    115,036.63x = 6,932,416,886.39
  5. Step 5: Solve for x
    x = 6,932,416,886.39/115,036.63
  6. Step 6: Final answer
    x = 60,262.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.