Home / 120,362.09-166,102.29-65,916.59

Finding the Fourth Proportional to 120,362.09, 166,102.29 and 65,916.59

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Solution

The fourth proportional to 120,362.09, 166,102.29 and 65,916.59 is: 90,966.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,362.09 : 166,102.29 = 65,916.59 : x
  2. Step 2: Convert to fraction form
    120,362.09/166,102.29 = 65,916.59/x
  3. Step 3: Cross multiply
    120,362.09x = 166,102.29 × 65,916.59
  4. Step 4: Simplify right side
    120,362.09x = 10,948,895,717.48
  5. Step 5: Solve for x
    x = 10,948,895,717.48/120,362.09
  6. Step 6: Final answer
    x = 90,966.32

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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.