Home / 149,857.24-206,824.65-89,430.43

Finding the Fourth Proportional to 149,857.24, 206,824.65 and 89,430.43

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Solution

The fourth proportional to 149,857.24, 206,824.65 and 89,430.43 is: 123,426.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,857.24 : 206,824.65 = 89,430.43 : x
  2. Step 2: Convert to fraction form
    149,857.24/206,824.65 = 89,430.43/x
  3. Step 3: Cross multiply
    149,857.24x = 206,824.65 × 89,430.43
  4. Step 4: Simplify right side
    149,857.24x = 18,496,417,384.10
  5. Step 5: Solve for x
    x = 18,496,417,384.10/149,857.24
  6. Step 6: Final answer
    x = 123,426.92

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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.