Home / 122,599.28-169,137.98-77,265.20

Finding the Fourth Proportional to 122,599.28, 169,137.98 and 77,265.20

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Solution

The fourth proportional to 122,599.28, 169,137.98 and 77,265.20 is: 106,595.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,599.28 : 169,137.98 = 77,265.20 : x
  2. Step 2: Convert to fraction form
    122,599.28/169,137.98 = 77,265.20/x
  3. Step 3: Cross multiply
    122,599.28x = 169,137.98 × 77,265.20
  4. Step 4: Simplify right side
    122,599.28x = 13,068,479,852.30
  5. Step 5: Solve for x
    x = 13,068,479,852.30/122,599.28
  6. Step 6: Final answer
    x = 106,595.08

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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.