Home / 149,307.11-206,042.06-81,323.87

Finding the Fourth Proportional to 149,307.11, 206,042.06 and 81,323.87

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Solution

The fourth proportional to 149,307.11, 206,042.06 and 81,323.87 is: 112,225.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,307.11 : 206,042.06 = 81,323.87 : x
  2. Step 2: Convert to fraction form
    149,307.11/206,042.06 = 81,323.87/x
  3. Step 3: Cross multiply
    149,307.11x = 206,042.06 × 81,323.87
  4. Step 4: Simplify right side
    149,307.11x = 16,756,136,671.76
  5. Step 5: Solve for x
    x = 16,756,136,671.76/149,307.11
  6. Step 6: Final answer
    x = 112,225.98

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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.