Home / 120,430.04-166,190.10-69,441.80

Finding the Fourth Proportional to 120,430.04, 166,190.10 and 69,441.80

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Solution

The fourth proportional to 120,430.04, 166,190.10 and 69,441.80 is: 95,827.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,430.04 : 166,190.10 = 69,441.80 : x
  2. Step 2: Convert to fraction form
    120,430.04/166,190.10 = 69,441.80/x
  3. Step 3: Cross multiply
    120,430.04x = 166,190.10 × 69,441.80
  4. Step 4: Simplify right side
    120,430.04x = 11,540,539,686.18
  5. Step 5: Solve for x
    x = 11,540,539,686.18/120,430.04
  6. Step 6: Final answer
    x = 95,827.75

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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.