Home / 122,171.10-168,572.01-76,822.74

Finding the Fourth Proportional to 122,171.10, 168,572.01 and 76,822.74

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Solution

The fourth proportional to 122,171.10, 168,572.01 and 76,822.74 is: 106,000.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,171.10 : 168,572.01 = 76,822.74 : x
  2. Step 2: Convert to fraction form
    122,171.10/168,572.01 = 76,822.74/x
  3. Step 3: Cross multiply
    122,171.10x = 168,572.01 × 76,822.74
  4. Step 4: Simplify right side
    122,171.10x = 12,950,163,695.51
  5. Step 5: Solve for x
    x = 12,950,163,695.51/122,171.10
  6. Step 6: Final answer
    x = 106,000.22

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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.