Home / 211,125.47-291,355.20-126,242.53

Finding the Fourth Proportional to 211,125.47, 291,355.20 and 126,242.53

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Solution

The fourth proportional to 211,125.47, 291,355.20 and 126,242.53 is: 174,215.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,125.47 : 291,355.20 = 126,242.53 : x
  2. Step 2: Convert to fraction form
    211,125.47/291,355.20 = 126,242.53/x
  3. Step 3: Cross multiply
    211,125.47x = 291,355.20 × 126,242.53
  4. Step 4: Simplify right side
    211,125.47x = 36,781,417,940.85
  5. Step 5: Solve for x
    x = 36,781,417,940.85/211,125.47
  6. Step 6: Final answer
    x = 174,215.92

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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.