Home / 211,875.40-317,812.14-71,730.76

Finding the Fourth Proportional to 211,875.40, 317,812.14 and 71,730.76

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Solution

The fourth proportional to 211,875.40, 317,812.14 and 71,730.76 is: 107,595.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,875.40 : 317,812.14 = 71,730.76 : x
  2. Step 2: Convert to fraction form
    211,875.40/317,812.14 = 71,730.76/x
  3. Step 3: Cross multiply
    211,875.40x = 317,812.14 × 71,730.76
  4. Step 4: Simplify right side
    211,875.40x = 22,796,906,339.43
  5. Step 5: Solve for x
    x = 22,796,906,339.43/211,875.40
  6. Step 6: Final answer
    x = 107,595.81

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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.