Home / 122,769.27-169,406.44-77,430.13

Finding the Fourth Proportional to 122,769.27, 169,406.44 and 77,430.13

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Solution

The fourth proportional to 122,769.27, 169,406.44 and 77,430.13 is: 106,844.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,769.27 : 169,406.44 = 77,430.13 : x
  2. Step 2: Convert to fraction form
    122,769.27/169,406.44 = 77,430.13/x
  3. Step 3: Cross multiply
    122,769.27x = 169,406.44 × 77,430.13
  4. Step 4: Simplify right side
    122,769.27x = 13,117,162,054.95
  5. Step 5: Solve for x
    x = 13,117,162,054.95/122,769.27
  6. Step 6: Final answer
    x = 106,844.02

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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.