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Finding the Fourth Proportional to 120,323.70, 166,050.61 and 69,332.51

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Solution

The fourth proportional to 120,323.70, 166,050.61 and 69,332.51 is: 95,681.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,323.70 : 166,050.61 = 69,332.51 : x
  2. Step 2: Convert to fraction form
    120,323.70/166,050.61 = 69,332.51/x
  3. Step 3: Cross multiply
    120,323.70x = 166,050.61 × 69,332.51
  4. Step 4: Simplify right side
    120,323.70x = 11,512,705,820.13
  5. Step 5: Solve for x
    x = 11,512,705,820.13/120,323.70
  6. Step 6: Final answer
    x = 95,681.12

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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.