Home / 122,714.55-169,358.88-74,999.69

Finding the Fourth Proportional to 122,714.55, 169,358.88 and 74,999.69

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Solution

The fourth proportional to 122,714.55, 169,358.88 and 74,999.69 is: 103,507.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,714.55 : 169,358.88 = 74,999.69 : x
  2. Step 2: Convert to fraction form
    122,714.55/169,358.88 = 74,999.69/x
  3. Step 3: Cross multiply
    122,714.55x = 169,358.88 × 74,999.69
  4. Step 4: Simplify right side
    122,714.55x = 12,701,862,651.95
  5. Step 5: Solve for x
    x = 12,701,862,651.95/122,714.55
  6. Step 6: Final answer
    x = 103,507.39

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1.5x scale

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.