Home / 122,854.51-169,603.23-82,778.95

Finding the Fourth Proportional to 122,854.51, 169,603.23 and 82,778.95

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Solution

The fourth proportional to 122,854.51, 169,603.23 and 82,778.95 is: 114,278.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,854.51 : 169,603.23 = 82,778.95 : x
  2. Step 2: Convert to fraction form
    122,854.51/169,603.23 = 82,778.95/x
  3. Step 3: Cross multiply
    122,854.51x = 169,603.23 × 82,778.95
  4. Step 4: Simplify right side
    122,854.51x = 14,039,577,296.01
  5. Step 5: Solve for x
    x = 14,039,577,296.01/122,854.51
  6. Step 6: Final answer
    x = 114,278.08

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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.