Home / 122,043.06-168,497.76-83,790.30

Finding the Fourth Proportional to 122,043.06, 168,497.76 and 83,790.30

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Solution

The fourth proportional to 122,043.06, 168,497.76 and 83,790.30 is: 115,684.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,043.06 : 168,497.76 = 83,790.30 : x
  2. Step 2: Convert to fraction form
    122,043.06/168,497.76 = 83,790.30/x
  3. Step 3: Cross multiply
    122,043.06x = 168,497.76 × 83,790.30
  4. Step 4: Simplify right side
    122,043.06x = 14,118,477,859.73
  5. Step 5: Solve for x
    x = 14,118,477,859.73/122,043.06
  6. Step 6: Final answer
    x = 115,684.40

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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.