Home / 120,572.02-166,391.38-66,859.30

Finding the Fourth Proportional to 120,572.02, 166,391.38 and 66,859.30

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Solution

The fourth proportional to 120,572.02, 166,391.38 and 66,859.30 is: 92,266.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,572.02 : 166,391.38 = 66,859.30 : x
  2. Step 2: Convert to fraction form
    120,572.02/166,391.38 = 66,859.30/x
  3. Step 3: Cross multiply
    120,572.02x = 166,391.38 × 66,859.30
  4. Step 4: Simplify right side
    120,572.02x = 11,124,811,192.83
  5. Step 5: Solve for x
    x = 11,124,811,192.83/120,572.02
  6. Step 6: Final answer
    x = 92,266.94

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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.