Home / 123,330.30-170,158.23-85,102.62

Finding the Fourth Proportional to 123,330.30, 170,158.23 and 85,102.62

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Solution

The fourth proportional to 123,330.30, 170,158.23 and 85,102.62 is: 117,415.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,330.30 : 170,158.23 = 85,102.62 : x
  2. Step 2: Convert to fraction form
    123,330.30/170,158.23 = 85,102.62/x
  3. Step 3: Cross multiply
    123,330.30x = 170,158.23 × 85,102.62
  4. Step 4: Simplify right side
    123,330.30x = 14,480,911,187.56
  5. Step 5: Solve for x
    x = 14,480,911,187.56/123,330.30
  6. Step 6: Final answer
    x = 117,415.68

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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.