Home / 149,390.04-206,151.75-84,859.10

Finding the Fourth Proportional to 149,390.04, 206,151.75 and 84,859.10

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Solution

The fourth proportional to 149,390.04, 206,151.75 and 84,859.10 is: 117,101.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,390.04 : 206,151.75 = 84,859.10 : x
  2. Step 2: Convert to fraction form
    149,390.04/206,151.75 = 84,859.10/x
  3. Step 3: Cross multiply
    149,390.04x = 206,151.75 × 84,859.10
  4. Step 4: Simplify right side
    149,390.04x = 17,493,852,149.96
  5. Step 5: Solve for x
    x = 17,493,852,149.96/149,390.04
  6. Step 6: Final answer
    x = 117,101.86

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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.