Home / 122,752.12-169,399.76-74,995.34

Finding the Fourth Proportional to 122,752.12, 169,399.76 and 74,995.34

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Solution

The fourth proportional to 122,752.12, 169,399.76 and 74,995.34 is: 103,494.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,752.12 : 169,399.76 = 74,995.34 : x
  2. Step 2: Convert to fraction form
    122,752.12/169,399.76 = 74,995.34/x
  3. Step 3: Cross multiply
    122,752.12x = 169,399.76 × 74,995.34
  4. Step 4: Simplify right side
    122,752.12x = 12,704,192,597.12
  5. Step 5: Solve for x
    x = 12,704,192,597.12/122,752.12
  6. Step 6: Final answer
    x = 103,494.69

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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.