Home / 120,309.03-166,024.08-66,590.91

Finding the Fourth Proportional to 120,309.03, 166,024.08 and 66,590.91

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Solution

The fourth proportional to 120,309.03, 166,024.08 and 66,590.91 is: 91,894.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,309.03 : 166,024.08 = 66,590.91 : x
  2. Step 2: Convert to fraction form
    120,309.03/166,024.08 = 66,590.91/x
  3. Step 3: Cross multiply
    120,309.03x = 166,024.08 × 66,590.91
  4. Step 4: Simplify right side
    120,309.03x = 11,055,694,569.11
  5. Step 5: Solve for x
    x = 11,055,694,569.11/120,309.03
  6. Step 6: Final answer
    x = 91,894.14

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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.