Home / 149,509.98-206,322.26-81,526.79

Finding the Fourth Proportional to 149,509.98, 206,322.26 and 81,526.79

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Solution

The fourth proportional to 149,509.98, 206,322.26 and 81,526.79 is: 112,506.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,509.98 : 206,322.26 = 81,526.79 : x
  2. Step 2: Convert to fraction form
    149,509.98/206,322.26 = 81,526.79/x
  3. Step 3: Cross multiply
    149,509.98x = 206,322.26 × 81,526.79
  4. Step 4: Simplify right side
    149,509.98x = 16,820,791,671.52
  5. Step 5: Solve for x
    x = 16,820,791,671.52/149,509.98
  6. Step 6: Final answer
    x = 112,506.15

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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.