Home / 112,904-169,356.08-28,670.48

Finding the Fourth Proportional to 112,904, 169,356.08 and 28,670.48

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Solution

The fourth proportional to 112,904, 169,356.08 and 28,670.48 is: 43,005.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,904 : 169,356.08 = 28,670.48 : x
  2. Step 2: Convert to fraction form
    112,904/169,356.08 = 28,670.48/x
  3. Step 3: Cross multiply
    112,904x = 169,356.08 × 28,670.48
  4. Step 4: Simplify right side
    112,904x = 4,855,520,104.52
  5. Step 5: Solve for x
    x = 4,855,520,104.52/112,904
  6. Step 6: Final answer
    x = 43,005.74

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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.