Home / 149,931.88-206,908.93-81,946.96

Finding the Fourth Proportional to 149,931.88, 206,908.93 and 81,946.96

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Solution

The fourth proportional to 149,931.88, 206,908.93 and 81,946.96 is: 113,088.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,931.88 : 206,908.93 = 81,946.96 : x
  2. Step 2: Convert to fraction form
    149,931.88/206,908.93 = 81,946.96/x
  3. Step 3: Cross multiply
    149,931.88x = 206,908.93 × 81,946.96
  4. Step 4: Simplify right side
    149,931.88x = 16,955,557,395.51
  5. Step 5: Solve for x
    x = 16,955,557,395.51/149,931.88
  6. Step 6: Final answer
    x = 113,088.41

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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.