Home / 211,972.52-292,438.26-136,565

Finding the Fourth Proportional to 211,972.52, 292,438.26 and 136,565

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Solution

The fourth proportional to 211,972.52, 292,438.26 and 136,565 is: 188,405.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,972.52 : 292,438.26 = 136,565 : x
  2. Step 2: Convert to fraction form
    211,972.52/292,438.26 = 136,565/x
  3. Step 3: Cross multiply
    211,972.52x = 292,438.26 × 136,565
  4. Step 4: Simplify right side
    211,972.52x = 39,936,830,976.90
  5. Step 5: Solve for x
    x = 39,936,830,976.90/211,972.52
  6. Step 6: Final answer
    x = 188,405.70

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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.