Home / 147,158.12-203,084.88-86,731.32

Finding the Fourth Proportional to 147,158.12, 203,084.88 and 86,731.32

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Solution

The fourth proportional to 147,158.12, 203,084.88 and 86,731.32 is: 119,693.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,158.12 : 203,084.88 = 86,731.32 : x
  2. Step 2: Convert to fraction form
    147,158.12/203,084.88 = 86,731.32/x
  3. Step 3: Cross multiply
    147,158.12x = 203,084.88 × 86,731.32
  4. Step 4: Simplify right side
    147,158.12x = 17,613,819,714.44
  5. Step 5: Solve for x
    x = 17,613,819,714.44/147,158.12
  6. Step 6: Final answer
    x = 119,693.16

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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.