Home / 211,775.50-292,315.80-136,324

Finding the Fourth Proportional to 211,775.50, 292,315.80 and 136,324

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Solution

The fourth proportional to 211,775.50, 292,315.80 and 136,324 is: 188,169.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,775.50 : 292,315.80 = 136,324 : x
  2. Step 2: Convert to fraction form
    211,775.50/292,315.80 = 136,324/x
  3. Step 3: Cross multiply
    211,775.50x = 292,315.80 × 136,324
  4. Step 4: Simplify right side
    211,775.50x = 39,849,659,119.20
  5. Step 5: Solve for x
    x = 39,849,659,119.20/211,775.50
  6. Step 6: Final answer
    x = 188,169.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.