Home / 211,392.68-317,089.02-71,139.56

Finding the Fourth Proportional to 211,392.68, 317,089.02 and 71,139.56

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Solution

The fourth proportional to 211,392.68, 317,089.02 and 71,139.56 is: 106,709.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,392.68 : 317,089.02 = 71,139.56 : x
  2. Step 2: Convert to fraction form
    211,392.68/317,089.02 = 71,139.56/x
  3. Step 3: Cross multiply
    211,392.68x = 317,089.02 × 71,139.56
  4. Step 4: Simplify right side
    211,392.68x = 22,557,573,363.63
  5. Step 5: Solve for x
    x = 22,557,573,363.63/211,392.68
  6. Step 6: Final answer
    x = 106,709.34

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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.