Home / 130,669.62-180,302.21-76,965.33

Finding the Fourth Proportional to 130,669.62, 180,302.21 and 76,965.33

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Solution

The fourth proportional to 130,669.62, 180,302.21 and 76,965.33 is: 106,199.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,669.62 : 180,302.21 = 76,965.33 : x
  2. Step 2: Convert to fraction form
    130,669.62/180,302.21 = 76,965.33/x
  3. Step 3: Cross multiply
    130,669.62x = 180,302.21 × 76,965.33
  4. Step 4: Simplify right side
    130,669.62x = 13,877,019,092.38
  5. Step 5: Solve for x
    x = 13,877,019,092.38/130,669.62
  6. Step 6: Final answer
    x = 106,199.28

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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.