Home / 120,543.79-166,354.38-66,833.81

Finding the Fourth Proportional to 120,543.79, 166,354.38 and 66,833.81

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Solution

The fourth proportional to 120,543.79, 166,354.38 and 66,833.81 is: 92,232.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,543.79 : 166,354.38 = 66,833.81 : x
  2. Step 2: Convert to fraction form
    120,543.79/166,354.38 = 66,833.81/x
  3. Step 3: Cross multiply
    120,543.79x = 166,354.38 × 66,833.81
  4. Step 4: Simplify right side
    120,543.79x = 11,118,095,859.65
  5. Step 5: Solve for x
    x = 11,118,095,859.65/120,543.79
  6. Step 6: Final answer
    x = 92,232.84

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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.