Home / 210,814.04-316,219.38-86,067.56

Finding the Fourth Proportional to 210,814.04, 316,219.38 and 86,067.56

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Solution

The fourth proportional to 210,814.04, 316,219.38 and 86,067.56 is: 129,100.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,814.04 : 316,219.38 = 86,067.56 : x
  2. Step 2: Convert to fraction form
    210,814.04/316,219.38 = 86,067.56/x
  3. Step 3: Cross multiply
    210,814.04x = 316,219.38 × 86,067.56
  4. Step 4: Simplify right side
    210,814.04x = 27,216,230,461.31
  5. Step 5: Solve for x
    x = 27,216,230,461.31/210,814.04
  6. Step 6: Final answer
    x = 129,100.65

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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.