Home / 151,440.51-208,842.16-99,665.00

Finding the Fourth Proportional to 151,440.51, 208,842.16 and 99,665.00

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Solution

The fourth proportional to 151,440.51, 208,842.16 and 99,665.00 is: 137,441.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,440.51 : 208,842.16 = 99,665.00 : x
  2. Step 2: Convert to fraction form
    151,440.51/208,842.16 = 99,665.00/x
  3. Step 3: Cross multiply
    151,440.51x = 208,842.16 × 99,665.00
  4. Step 4: Simplify right side
    151,440.51x = 20,814,252,832.19
  5. Step 5: Solve for x
    x = 20,814,252,832.19/151,440.51
  6. Step 6: Final answer
    x = 137,441.78

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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.