Home / 155,788.74-214,921.05-98,388.18

Finding the Fourth Proportional to 155,788.74, 214,921.05 and 98,388.18

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Solution

The fourth proportional to 155,788.74, 214,921.05 and 98,388.18 is: 135,733.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,788.74 : 214,921.05 = 98,388.18 : x
  2. Step 2: Convert to fraction form
    155,788.74/214,921.05 = 98,388.18/x
  3. Step 3: Cross multiply
    155,788.74x = 214,921.05 × 98,388.18
  4. Step 4: Simplify right side
    155,788.74x = 21,145,690,953.19
  5. Step 5: Solve for x
    x = 21,145,690,953.19/155,788.74
  6. Step 6: Final answer
    x = 135,733.11

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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.