Home / 211,172.88-316,761.75-70,931.52

Finding the Fourth Proportional to 211,172.88, 316,761.75 and 70,931.52

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Solution

The fourth proportional to 211,172.88, 316,761.75 and 70,931.52 is: 106,398.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,172.88 : 316,761.75 = 70,931.52 : x
  2. Step 2: Convert to fraction form
    211,172.88/316,761.75 = 70,931.52/x
  3. Step 3: Cross multiply
    211,172.88x = 316,761.75 × 70,931.52
  4. Step 4: Simplify right side
    211,172.88x = 22,468,392,405.36
  5. Step 5: Solve for x
    x = 22,468,392,405.36/211,172.88
  6. Step 6: Final answer
    x = 106,398.10

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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.