Home / 122,176.28-168,607.98-71,221.88

Finding the Fourth Proportional to 122,176.28, 168,607.98 and 71,221.88

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Solution

The fourth proportional to 122,176.28, 168,607.98 and 71,221.88 is: 98,288.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,176.28 : 168,607.98 = 71,221.88 : x
  2. Step 2: Convert to fraction form
    122,176.28/168,607.98 = 71,221.88/x
  3. Step 3: Cross multiply
    122,176.28x = 168,607.98 × 71,221.88
  4. Step 4: Simplify right side
    122,176.28x = 12,008,577,740.12
  5. Step 5: Solve for x
    x = 12,008,577,740.12/122,176.28
  6. Step 6: Final answer
    x = 98,288.94

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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.