Home / 149,264.25-205,981.71-81,282.03

Finding the Fourth Proportional to 149,264.25, 205,981.71 and 81,282.03

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Solution

The fourth proportional to 149,264.25, 205,981.71 and 81,282.03 is: 112,167.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,264.25 : 205,981.71 = 81,282.03 : x
  2. Step 2: Convert to fraction form
    149,264.25/205,981.71 = 81,282.03/x
  3. Step 3: Cross multiply
    149,264.25x = 205,981.71 × 81,282.03
  4. Step 4: Simplify right side
    149,264.25x = 16,742,611,531.67
  5. Step 5: Solve for x
    x = 16,742,611,531.67/149,264.25
  6. Step 6: Final answer
    x = 112,167.59

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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.