Home / 122,752.53-169,421.76-76,833.47

Finding the Fourth Proportional to 122,752.53, 169,421.76 and 76,833.47

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Solution

The fourth proportional to 122,752.53, 169,421.76 and 76,833.47 is: 106,044.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,752.53 : 169,421.76 = 76,833.47 : x
  2. Step 2: Convert to fraction form
    122,752.53/169,421.76 = 76,833.47/x
  3. Step 3: Cross multiply
    122,752.53x = 169,421.76 × 76,833.47
  4. Step 4: Simplify right side
    122,752.53x = 13,017,261,330.14
  5. Step 5: Solve for x
    x = 13,017,261,330.14/122,752.53
  6. Step 6: Final answer
    x = 106,044.75

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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.