Home / 149,792.16-206,693.28-89,369.76

Finding the Fourth Proportional to 149,792.16, 206,693.28 and 89,369.76

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Solution

The fourth proportional to 149,792.16, 206,693.28 and 89,369.76 is: 123,318.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,792.16 : 206,693.28 = 89,369.76 : x
  2. Step 2: Convert to fraction form
    149,792.16/206,693.28 = 89,369.76/x
  3. Step 3: Cross multiply
    149,792.16x = 206,693.28 × 89,369.76
  4. Step 4: Simplify right side
    149,792.16x = 18,472,128,827.21
  5. Step 5: Solve for x
    x = 18,472,128,827.21/149,792.16
  6. Step 6: Final answer
    x = 123,318.40

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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.