Home / 122,355.15-168,851.26-68,641.32

Finding the Fourth Proportional to 122,355.15, 168,851.26 and 68,641.32

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Solution

The fourth proportional to 122,355.15, 168,851.26 and 68,641.32 is: 94,725.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,355.15 : 168,851.26 = 68,641.32 : x
  2. Step 2: Convert to fraction form
    122,355.15/168,851.26 = 68,641.32/x
  3. Step 3: Cross multiply
    122,355.15x = 168,851.26 × 68,641.32
  4. Step 4: Simplify right side
    122,355.15x = 11,590,173,073.20
  5. Step 5: Solve for x
    x = 11,590,173,073.20/122,355.15
  6. Step 6: Final answer
    x = 94,725.67

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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.