Home / 151,148.36-208,586.48-86,616.32

Finding the Fourth Proportional to 151,148.36, 208,586.48 and 86,616.32

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Solution

The fourth proportional to 151,148.36, 208,586.48 and 86,616.32 is: 119,531.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,148.36 : 208,586.48 = 86,616.32 : x
  2. Step 2: Convert to fraction form
    151,148.36/208,586.48 = 86,616.32/x
  3. Step 3: Cross multiply
    151,148.36x = 208,586.48 × 86,616.32
  4. Step 4: Simplify right side
    151,148.36x = 18,066,993,299.35
  5. Step 5: Solve for x
    x = 18,066,993,299.35/151,148.36
  6. Step 6: Final answer
    x = 119,531.52

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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.