Home / 120,520.08-166,318.56-69,543.36

Finding the Fourth Proportional to 120,520.08, 166,318.56 and 69,543.36

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Solution

The fourth proportional to 120,520.08, 166,318.56 and 69,543.36 is: 95,970.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,520.08 : 166,318.56 = 69,543.36 : x
  2. Step 2: Convert to fraction form
    120,520.08/166,318.56 = 69,543.36/x
  3. Step 3: Cross multiply
    120,520.08x = 166,318.56 × 69,543.36
  4. Step 4: Simplify right side
    120,520.08x = 11,566,351,492.76
  5. Step 5: Solve for x
    x = 11,566,351,492.76/120,520.08
  6. Step 6: Final answer
    x = 95,970.33

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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.