Home / 122,606.69-169,217.28-102,156.30

Finding the Fourth Proportional to 122,606.69, 169,217.28 and 102,156.30

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Solution

The fourth proportional to 122,606.69, 169,217.28 and 102,156.30 is: 140,992.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,606.69 : 169,217.28 = 102,156.30 : x
  2. Step 2: Convert to fraction form
    122,606.69/169,217.28 = 102,156.30/x
  3. Step 3: Cross multiply
    122,606.69x = 169,217.28 × 102,156.30
  4. Step 4: Simplify right side
    122,606.69x = 17,286,611,220.86
  5. Step 5: Solve for x
    x = 17,286,611,220.86/122,606.69
  6. Step 6: Final answer
    x = 140,992.40

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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.