Home / 120,292.08-166,005.72-77,924.28

Finding the Fourth Proportional to 120,292.08, 166,005.72 and 77,924.28

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Solution

The fourth proportional to 120,292.08, 166,005.72 and 77,924.28 is: 107,537.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,292.08 : 166,005.72 = 77,924.28 : x
  2. Step 2: Convert to fraction form
    120,292.08/166,005.72 = 77,924.28/x
  3. Step 3: Cross multiply
    120,292.08x = 166,005.72 × 77,924.28
  4. Step 4: Simplify right side
    120,292.08x = 12,935,876,206.88
  5. Step 5: Solve for x
    x = 12,935,876,206.88/120,292.08
  6. Step 6: Final answer
    x = 107,537.22

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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.