Home / 151,653.06-209,279.84-83,670.64

Finding the Fourth Proportional to 151,653.06, 209,279.84 and 83,670.64

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Solution

The fourth proportional to 151,653.06, 209,279.84 and 83,670.64 is: 115,464.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,653.06 : 209,279.84 = 83,670.64 : x
  2. Step 2: Convert to fraction form
    151,653.06/209,279.84 = 83,670.64/x
  3. Step 3: Cross multiply
    151,653.06x = 209,279.84 × 83,670.64
  4. Step 4: Simplify right side
    151,653.06x = 17,510,577,210.34
  5. Step 5: Solve for x
    x = 17,510,577,210.34/151,653.06
  6. Step 6: Final answer
    x = 115,464.71

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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.