Home / 120,302.75-166,000.42-66,587.64

Finding the Fourth Proportional to 120,302.75, 166,000.42 and 66,587.64

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Solution

The fourth proportional to 120,302.75, 166,000.42 and 66,587.64 is: 91,881.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,302.75 : 166,000.42 = 66,587.64 : x
  2. Step 2: Convert to fraction form
    120,302.75/166,000.42 = 66,587.64/x
  3. Step 3: Cross multiply
    120,302.75x = 166,000.42 × 66,587.64
  4. Step 4: Simplify right side
    120,302.75x = 11,053,575,877.24
  5. Step 5: Solve for x
    x = 11,053,575,877.24/120,302.75
  6. Step 6: Final answer
    x = 91,881.32

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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.