Home / 122,068.28-168,445.74-81,775.52

Finding the Fourth Proportional to 122,068.28, 168,445.74 and 81,775.52

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Solution

The fourth proportional to 122,068.28, 168,445.74 and 81,775.52 is: 112,844.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,068.28 : 168,445.74 = 81,775.52 : x
  2. Step 2: Convert to fraction form
    122,068.28/168,445.74 = 81,775.52/x
  3. Step 3: Cross multiply
    122,068.28x = 168,445.74 × 81,775.52
  4. Step 4: Simplify right side
    122,068.28x = 13,774,737,980.28
  5. Step 5: Solve for x
    x = 13,774,737,980.28/122,068.28
  6. Step 6: Final answer
    x = 112,844.53

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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.