Home / 158,355.42-218,534.01-90,371.04

Finding the Fourth Proportional to 158,355.42, 218,534.01 and 90,371.04

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Solution

The fourth proportional to 158,355.42, 218,534.01 and 90,371.04 is: 124,714.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,355.42 : 218,534.01 = 90,371.04 : x
  2. Step 2: Convert to fraction form
    158,355.42/218,534.01 = 90,371.04/x
  3. Step 3: Cross multiply
    158,355.42x = 218,534.01 × 90,371.04
  4. Step 4: Simplify right side
    158,355.42x = 19,749,145,759.07
  5. Step 5: Solve for x
    x = 19,749,145,759.07/158,355.42
  6. Step 6: Final answer
    x = 124,714.05

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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.