Home / 157,146.20-216,314.04-136,968.02

Finding the Fourth Proportional to 157,146.20, 216,314.04 and 136,968.02

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Solution

The fourth proportional to 157,146.20, 216,314.04 and 136,968.02 is: 188,538.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,146.20 : 216,314.04 = 136,968.02 : x
  2. Step 2: Convert to fraction form
    157,146.20/216,314.04 = 136,968.02/x
  3. Step 3: Cross multiply
    157,146.20x = 216,314.04 × 136,968.02
  4. Step 4: Simplify right side
    157,146.20x = 29,628,105,757.00
  5. Step 5: Solve for x
    x = 29,628,105,757.00/157,146.20
  6. Step 6: Final answer
    x = 188,538.48

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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.