Home / 211,227.08-316,835.08-70,985.66

Finding the Fourth Proportional to 211,227.08, 316,835.08 and 70,985.66

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Solution

The fourth proportional to 211,227.08, 316,835.08 and 70,985.66 is: 106,476.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,227.08 : 316,835.08 = 70,985.66 : x
  2. Step 2: Convert to fraction form
    211,227.08/316,835.08 = 70,985.66/x
  3. Step 3: Cross multiply
    211,227.08x = 316,835.08 × 70,985.66
  4. Step 4: Simplify right side
    211,227.08x = 22,490,745,503.31
  5. Step 5: Solve for x
    x = 22,490,745,503.31/211,227.08
  6. Step 6: Final answer
    x = 106,476.62

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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.