Home / 120,724.80-166,561.56-69,730.80

Finding the Fourth Proportional to 120,724.80, 166,561.56 and 69,730.80

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Solution

The fourth proportional to 120,724.80, 166,561.56 and 69,730.80 is: 96,206.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,724.80 : 166,561.56 = 69,730.80 : x
  2. Step 2: Convert to fraction form
    120,724.80/166,561.56 = 69,730.80/x
  3. Step 3: Cross multiply
    120,724.80x = 166,561.56 × 69,730.80
  4. Step 4: Simplify right side
    120,724.80x = 11,614,470,828.05
  5. Step 5: Solve for x
    x = 11,614,470,828.05/120,724.80
  6. Step 6: Final answer
    x = 96,206.17

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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.