Home / 210,942.32-316,378.20-92,581.88

Finding the Fourth Proportional to 210,942.32, 316,378.20 and 92,581.88

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Solution

The fourth proportional to 210,942.32, 316,378.20 and 92,581.88 is: 138,857.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,942.32 : 316,378.20 = 92,581.88 : x
  2. Step 2: Convert to fraction form
    210,942.32/316,378.20 = 92,581.88/x
  3. Step 3: Cross multiply
    210,942.32x = 316,378.20 × 92,581.88
  4. Step 4: Simplify right side
    210,942.32x = 29,290,888,547.02
  5. Step 5: Solve for x
    x = 29,290,888,547.02/210,942.32
  6. Step 6: Final answer
    x = 138,857.34

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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.