Home / 151,948.22-209,703.29-83,981.12

Finding the Fourth Proportional to 151,948.22, 209,703.29 and 83,981.12

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Solution

The fourth proportional to 151,948.22, 209,703.29 and 83,981.12 is: 115,902.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,948.22 : 209,703.29 = 83,981.12 : x
  2. Step 2: Convert to fraction form
    151,948.22/209,703.29 = 83,981.12/x
  3. Step 3: Cross multiply
    151,948.22x = 209,703.29 × 83,981.12
  4. Step 4: Simplify right side
    151,948.22x = 17,611,115,693.46
  5. Step 5: Solve for x
    x = 17,611,115,693.46/151,948.22
  6. Step 6: Final answer
    x = 115,902.09

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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.