Home / 149,403.48-206,261.18-99,171.16

Finding the Fourth Proportional to 149,403.48, 206,261.18 and 99,171.16

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Solution

The fourth proportional to 149,403.48, 206,261.18 and 99,171.16 is: 136,912.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,403.48 : 206,261.18 = 99,171.16 : x
  2. Step 2: Convert to fraction form
    149,403.48/206,261.18 = 99,171.16/x
  3. Step 3: Cross multiply
    149,403.48x = 206,261.18 × 99,171.16
  4. Step 4: Simplify right side
    149,403.48x = 20,455,160,483.57
  5. Step 5: Solve for x
    x = 20,455,160,483.57/149,403.48
  6. Step 6: Final answer
    x = 136,912.21

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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.