Home / 211,783.82-292,267.64-125,721.72

Finding the Fourth Proportional to 211,783.82, 292,267.64 and 125,721.72

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Solution

The fourth proportional to 211,783.82, 292,267.64 and 125,721.72 is: 173,499.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,783.82 : 292,267.64 = 125,721.72 : x
  2. Step 2: Convert to fraction form
    211,783.82/292,267.64 = 125,721.72/x
  3. Step 3: Cross multiply
    211,783.82x = 292,267.64 × 125,721.72
  4. Step 4: Simplify right side
    211,783.82x = 36,744,390,715.45
  5. Step 5: Solve for x
    x = 36,744,390,715.45/211,783.82
  6. Step 6: Final answer
    x = 173,499.52

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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.