Home / 122,778.64-169,386.55-69,051.34

Finding the Fourth Proportional to 122,778.64, 169,386.55 and 69,051.34

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Solution

The fourth proportional to 122,778.64, 169,386.55 and 69,051.34 is: 95,263.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,778.64 : 169,386.55 = 69,051.34 : x
  2. Step 2: Convert to fraction form
    122,778.64/169,386.55 = 69,051.34/x
  3. Step 3: Cross multiply
    122,778.64x = 169,386.55 × 69,051.34
  4. Step 4: Simplify right side
    122,778.64x = 11,696,368,255.48
  5. Step 5: Solve for x
    x = 11,696,368,255.48/122,778.64
  6. Step 6: Final answer
    x = 95,263.87

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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.