Home / 149,521.20-206,331.48-92,931.36

Finding the Fourth Proportional to 149,521.20, 206,331.48 and 92,931.36

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Solution

The fourth proportional to 149,521.20, 206,331.48 and 92,931.36 is: 128,240.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,521.20 : 206,331.48 = 92,931.36 : x
  2. Step 2: Convert to fraction form
    149,521.20/206,331.48 = 92,931.36/x
  3. Step 3: Cross multiply
    149,521.20x = 206,331.48 × 92,931.36
  4. Step 4: Simplify right side
    149,521.20x = 19,174,665,047.21
  5. Step 5: Solve for x
    x = 19,174,665,047.21/149,521.20
  6. Step 6: Final answer
    x = 128,240.44

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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.