Home / 149,690.16-206,574.40-88,438.40

Finding the Fourth Proportional to 149,690.16, 206,574.40 and 88,438.40

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Solution

The fourth proportional to 149,690.16, 206,574.40 and 88,438.40 is: 122,046.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,690.16 : 206,574.40 = 88,438.40 : x
  2. Step 2: Convert to fraction form
    149,690.16/206,574.40 = 88,438.40/x
  3. Step 3: Cross multiply
    149,690.16x = 206,574.40 × 88,438.40
  4. Step 4: Simplify right side
    149,690.16x = 18,269,109,416.96
  5. Step 5: Solve for x
    x = 18,269,109,416.96/149,690.16
  6. Step 6: Final answer
    x = 122,046.16

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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.