Home / 122,726.39-169,288.92-74,896.70

Finding the Fourth Proportional to 122,726.39, 169,288.92 and 74,896.70

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Solution

The fourth proportional to 122,726.39, 169,288.92 and 74,896.70 is: 103,312.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,726.39 : 169,288.92 = 74,896.70 : x
  2. Step 2: Convert to fraction form
    122,726.39/169,288.92 = 74,896.70/x
  3. Step 3: Cross multiply
    122,726.39x = 169,288.92 × 74,896.70
  4. Step 4: Simplify right side
    122,726.39x = 12,679,180,608.12
  5. Step 5: Solve for x
    x = 12,679,180,608.12/122,726.39
  6. Step 6: Final answer
    x = 103,312.59

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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.