Home / 112,869.12-168,479.52-104,646

Finding the Fourth Proportional to 112,869.12, 168,479.52 and 104,646

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Solution

The fourth proportional to 112,869.12, 168,479.52 and 104,646 is: 156,204.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,869.12 : 168,479.52 = 104,646 : x
  2. Step 2: Convert to fraction form
    112,869.12/168,479.52 = 104,646/x
  3. Step 3: Cross multiply
    112,869.12x = 168,479.52 × 104,646
  4. Step 4: Simplify right side
    112,869.12x = 17,630,707,849.92
  5. Step 5: Solve for x
    x = 17,630,707,849.92/112,869.12
  6. Step 6: Final answer
    x = 156,204.88

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.