Home / 122,005.16-168,359.34-68,281.12

Finding the Fourth Proportional to 122,005.16, 168,359.34 and 68,281.12

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Solution

The fourth proportional to 122,005.16, 168,359.34 and 68,281.12 is: 94,223.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,005.16 : 168,359.34 = 68,281.12 : x
  2. Step 2: Convert to fraction form
    122,005.16/168,359.34 = 68,281.12/x
  3. Step 3: Cross multiply
    122,005.16x = 168,359.34 × 68,281.12
  4. Step 4: Simplify right side
    122,005.16x = 11,495,764,297.66
  5. Step 5: Solve for x
    x = 11,495,764,297.66/122,005.16
  6. Step 6: Final answer
    x = 94,223.59

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1.5x scale

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.